Just bought a pack of 5 nautilus 1.6 ohm coils, rm45 per pack

I found that using standard coils on a lower wrap taste better because of the cover area have more wicking and juice

For me, 2.4mm standard coils with 5 wraps always makes me happy

where to sign up for this? RM400 for a KF v4!!

depend on how you vape and what kind of PG/VG ratio you're vaping at.
for me on a 30PG/70VG and short puffs, the coil can last at least 7-10 days(on 13w)

Yes, that is why people are more into Rebuildable than precoil, it's somewhat cheaper than premade coils, the only thing is that you need to rewick it once every 3-4 days depending on how you vape. the wick and wire is much more cheaper than precoils.

maintenance for vaping can be ranged from RM45 - RM60 per month depending on how you vape... same thing as ciggy, if you chain smoke, you spend more on ciggy right? if you are into rebuilding, then it's a cheaper alternative compared to those pre-made coils.

The Subtank have good airflow and RBA+OCC coils, so it's a All in One tank... flavor wise i think it's a bit lacking. if you're not into rebuilding. this is the tank for you since you have the option to put in a prebuilt coil or if you want to try your hands on rebuilding.

The Lemo 2 IMO is an upgrade from the Lemo in terms of Airflow adjustability and Top fill, other than that, reviewers said that because the chimney is huge, so the flavor tends to run off a bit, i personally have tried the KF v4© and the Lemo and i think what they are saying is true. but performance wise, the Lemo 2 is a champ.