i got one or two I think. but copper, dissipates heat better I believe. currently unused, but planning to use, but dunno when. gimme one good reason then I sell it to you 
no such thing as the best. most are clones anyway, or have small2 issues.

just get a subox la. at least got RM200+ extra for you to get a few bottles of flavour... or gimme and I'll make you a whole bunch more of cheap "local grade" flavours 
no biggie la. see i became "sifu" or "otai" or whatever you bagi nama also because I got pissed at the local "scene" pon... out of necessity. and kedekut duit lel kalau otai because saja2 mau belajar baru la ok 

I think after few years of DIY-ing, I saved quite a lot. But a couple of failed flavours too. sometimes I still stick to single flavours, as I am a simple guy but sometimes I do experiment with two three flavours. Once you have a bunch of flavours, lots of PG VG Nic, you can start experimenting la, like how most local DIYers do. Not hard at all, but the "research" is time consuming a bit, both in the making (not so much if you make smaller, 5-10ml batches) and the tasting and steeping/peram (lots of time). So in actual truth, the ejuices that you're paying are not the ejuice cost, but their time. So if you think RM40 per bottle is as much as their time's worth, then pay la

> Absinthe: 10%
> Almond Amaretto: 5-10%, 5/5
> Apple: 10-15%, 4.5/5
> Banana Cream 10%-15%
> Banana Nut Bread: 5-7% (Great for mixing)
> Bavarian Cream 5%-15%
> Belgium Waffle 8-!2% 4/5
> Bittersweet (Choc): 10-15%, 4/5
> Black Cherry: 5-15%, 5/5
> Black Honey Tobacco: 3-5%
> Blackberry: 6%
> Black Sesame 1/10% (per eikon) that's .1 of a percent
> Black Tea 2.5-12% 3/5 needs a little steeping
> Blueberry: 15%
> Blueberry Extra: 6/5 10-13%
> Boysenberry: 5/5 ~1% (a dash of EM & Citric make it sing)
> Brown Sugar 15-20%
> Bubblegum: 10%>
> Butterscotch: 12%
> Caramel: 10-15%, 5/5
> Caramel Candy: 15-20%, 5/5
> Caramel Cappuccino: 1 drop in 10ml base 4/5
> Chai Tea: 10% 5/5 Very Unique, a must try
> Champagne: 7%
> Cheesecake: 3%-15%, 2/5
> Cherry Blossom; 15%
> Chocolate: 10-15%, 5/5
> Chocolate Mint: 10% (more chocolate than mint)
> Cinnamon: 0.25% (Just Sweet Cinnamon)
> Cinnamon Red Hots: 5-15%, 5/5
> Cinnamon Spice: 0.5% Okay Starting Point
> Cinnamon Sugar Cookie: 5%-15%
> Clove: 2-3%
> Coconut Extra: ~10%, 5/5
> Cotton Candy: 10-20%, 5/5
> DK Tab 555: 2%-5%
> Dragon Fruit: 5-12%
> Double Chocolate (Clear) 10-12% 4/5
> Dulce de Leche: <10%> - overpowering at 20% - good for combining
> Earl Grey: 3% (This is a strong Tea)
> English Toffee: 15-17%
> Flue Cured Tobacco: 8-15% 5/5
> French Vanilla: 10% (For me: Gets chemical/perfume tones over 5%)
> Graham Cracker: 10-15%, 5/5 - This flavor recommended for combining with others.
> Grape: 12%
> Grape Jolly Rancher: 8% - 10% 6/5
> Green Apple: 12-20%
> Green Tea: 10-15% 4/5
> Hawaiian Punch 12% 5/5
> Hazelnut 16% 5/5
> Hazelnut Praline: 5%, 2/5
> Hibiscus 1% (Start at 0.5%)
> Holiday Spice 1-2% (start at 0.5%)
> Honey: 1-5% (Very present at 5%)
> Honeydew Melon: 5-10%
> Honeysuckle: 10- 15% - very good but FYI will crack a tank
> Horchata: 5%, 5/5
> Irish Cream: 10 - 12%
> Juicy Peach 5%- 17%
> Key Lime Pie 12%
> Kona Coffee: 1drop/10ml, 4/5
> Lemon/Lime 5% 4/5
> Licorice 5/5 10% needs a few weeks to steep
> Lime (oil-based): 1-5%, 4/5
> Lychee:2-7%
> M-type Tobacco- 1% for starters... It requires a loooong steep!
> Malted Milk: 5% (best mixed with other others)
> Mango: 13%
> Maple Syrup: 10-15%
> Marischino Cherry: 5%, 4/5
> Menthol Liquid ( PG ): 1-5%
> Milk Chocolate: 20%, 4/5
> Mint Candy: 12%, 4.5/5
> Mt. Dew 10%-20%
> Nectarine: 11% (Spot On)
> Orange Cream: 5-10% 5/5 (To note, I am using all vg . So, I use it at higher %'s)
> Papaya: 10% 5-5 (Very Fragrant)
> Peach (not juicy) 12-15%
> Peach (juicy): 5-7% 5/5
> Peanut Butter: 10-15%, 5/5
> Pear: 10-15%, 4.5/5
> Peppermint: 15%
> Pie Crust 0.5%-12% 2/5 Adjusted minimum from 2% to 0.5%
> Pineapple: 15% 4.5/5 ( authentic flavor, I used 5% EM to sweeten)
> Pizza: ~5%, 5/5
> Plum: 5-10%, 4/5
> Pomegranate: 7.5%-14%
> Popcorn: 13%-15%
> Raisin: 0.5-3% (Powerful) I dilute mine before mixing 1:3
> Raspberry:5-10%
> Red Bull: 10%
> Ripe Banana: 8-12% (3-5% EM to make it a good stand alone flavor)
> RY4 Double- 5-15%
> RY4 Asian: 10-15%
> Smooth 1 drops per 10 ml
> Spearmint: <5% Very strong start small
> Strawberry: 3%-15%
> Strawberry Kiwi 20% 1/5
> Strawberries & Cream: 10-12% (good on its own, better with 3-5% EM)
> Sweet Cream: 5-10%, 4/5 - This flavor recommended for combining with others.
> Sweet Tart: 10%, 5/5 - Tastes more like Smarties
> Sweetener (Liquid): 4-6% (higher than 6% can be required, less strong than crystals)
> Tangerine (oil-based): 1-5%, 5/5
> Tiramisu 2%-15% Over 5% tastes like burned coffee
> Tobacco Blend Alcohol: 0.5-2.5%
> Toasted Marshmallow: 10-15%
> Toasted Almond: 15%
> Tobacco Absolute (TA): <1%
> Tutti Frutti: 10-15%, 4.5/5 (closer to 15% the more VG I use)
> Vanilla Bean Ice Cream: 4-8%, 4/5 (excellent mixer)
> Vanilla Bourbon: 10-15%, 4.5/5
> Vanilla Cupcake: 20%
> Vanilla Swirl: 10%
> Violet Candy: 10 - 12% (one of my favorite vapes)
> Waffle: 20%, 5/5
> Watermelon: 15% 4/5
> Whipped Cream 3% to 14% 3/5
> White Chocolate: 10% (note: mine had sugar as ingredient)
> Wintergreen: 20%, 5/5
> PA Sucralose Sweetener: 0.5%--2%+, 4.5/5

my self....bought BAD ASS...been steeping for almost a month...still the flavour is not out !!!!!
day before test bought OctoBrew no.2....damn this is the most shittiest E JUICE wic i have tasted...

....relly fcucked up bro.... there is no taste at all...except for some strange mild taste of jeruk....

RM90...down the drain...DAMn.

Anyone wants this octobrew no.2...jus take from me...its gonna go to the dump soon...
guys DON'T EVER BUY OCTOBREW NO.2   .

..Octobrew Apple crumble 12mg is awesome though !