you just brought it without a week? take back go shop, complain about it, call him let you test same model mouse wheel.

If your mouse wheel sounds weird or does not work as you intended. better you just abuse the frigging wheel until it patah itself, and straight go swap a new one.

ya, just deal wit it (G400). i ain't got no complaint abt it.

dunno u guys hav this exp or not.. i once bought a logitech wireless mouse (M215 to be exact), the box have chinese words besides the english one. The battery is not duracell. and now the battery -ve side conductor rust ady. is this fake?

I'm sorry, but as from the point of my saying, "Abuse" means constant using, i do not mean "throw to wall, smack it, wack it or damaging it"

In my view, if a Wheel is already faulty in the first place, why don't you use it constantly to see if it breaks easily? if it's not, consider it's passed the abusing test.

No offense, but i do face some RMA problem over my Modem in my local area shop, I send the modem back to where i purchase it in Taiping store.
The TP link Modem PPPoE failed, only Bridging works for connect to internet. but Shop claims the modem is working properly and can connect to internet with bridge. In the phone i kept argue-ing with him that they should test PPPoE auto connection, they kept claim no problem. I was so pissed up and went to their shop again and test the connection infront of their face. Then they send back for RMA.

Seller offers 7 days for 1 to 1 swap. It's for buyers to fully test the mouse and confirm to have no problem with it. Not "feeling weird, maybe i should have RMA it"
If Buyers failed to fully test the mouse and fail to confirm mouse has no problem. it will be buyers responsibility that they failed to check the mouse.

And by the way, if "feeling weird" to be able to qualify for RMA, won't you be very busy everyday? if you manage to handle 5 customers that "feel weird when using",
Or repeatingly report to you "feel weird when using", and buyer keeps claim it has problem, while the mouse clearly aren't faulty and in good condition, how will you handle it?
If a Product do have issue, like wheel begin not to function after 1~2 days of constant using and the wheel failed, you send back to RMA, reseller/retailer check it, confirm problem, Won't RMA be less fuss to handle?, and avoiding "buyer and seller" argue over it?

What i suggest it's for both seller and buyer to protect their own interest, saving courier fee, and less misunderstanding between both side.
Unit Failed, send to RMA, plain and simple.

Just a friendly advice to buyer, Anyone that purchase any kind of product which is in a box, please check the cosmetic for any signs of mouse has been used, or didn't assemble properly. If there's a signs of it, put back the box, report the problem, and don't use it.
I face this problem when i receive a brand new M8000X. you guys want the pictures of the product when i receive them? i think i still keep them.
Picture Below

A computer shop in Kota Kinabalu, and they have several branches already.
Ain't gonna say no name here.  

Rules of thumb is if you see logitech product with chinese words on it, 90% chances that it is fake.
look at the nano receiver if it's placed outside, i already show what the fake one looks like.
If it's a wireless/cordless product, make sure the battery inside is Duracell.
Google how the box of the product you gonna buy looks like first before you buy.
Hell there's tons of fake logitech / other comp. peripherals here in KK.

less feature > less hardware part > less problem to deal with > QC easier.

should have say, QC is easier in the old days since hardware inside has larger component and easier to check with.

Current hardware are getting smaller and smaller, due to market demand for compact size moue and more accurate sensor/efficiency. QC has become harder and harder.

Just my speculations, or another excuse for having poor QC control, i may be wrong thou. just saying out my POV.

if search at google Optical VS Laser , almost 90% saying laser is good , because it can using at almost any surface include glasses.

But for gamer , who want to play on glasses surface right? Everyone will owning a mousepad that suit them right?

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Added on January 2, 2012, 3:08 pm1 more question , cloth type mousepad vs harder , which more suitable for like Counter-strike or bf3 gamer?