This is so significant, it requires a thread of its own
The relationship of the air hole to the coil significantly affects performance on the RM2. Properly adjusted, you will have a smooth and flavorful vape with copious clouds of warm vapor. Improperly adjusted, and your vape is going to be so-so to downright anemic - It doesn't matter what kind of coil and wick setup your running. This is nothing new, It's fairly common knowledge to most folks using RBA's, but I ignored it on my RM2s until now. The reason being, that the cap / top of this RBA screws on. Most of us (me included) just screw it on and assume that the airhole is aligned with the coil. Not the case my friend. Between my two RM2s, one was very close to the coil, one was over by the tail of the wick (talk about a weak vape). But theres good news. Below, There is a simple, detailed method to tune yours so it'll vape at its maximum potential - like the rockstar it is.
Step 1: Screw the atomizer on the REO without a drip tip. Look down thru the top. See the coil? ok, You need the coil to be pointing UP when In your normal firing / hitting position ( when you bring it up to your mouth). If its not, turn it so it is. If you cant align it without excessive force (or its too loose) use the oring that came with the RBA by unscrewing the base and placing it in the drip well to achieve this. If that oring is not thick enough, I use one from a grand bottle cap. I use an oring with all RBA's to prevent over tightening to get proper alignment. Worst case scenario, if there's no way to turn it so its pointing up when in your normal firing position, adapt to a new firing position
Step 2: Now look at the cap. Is the airhole DIRECTLY in front of the coil or within a few degrees of it? If not, use an oring (the size that comes with the RBA) between the cap and the base to achieve this. I had to use 2 in this location.
Carefull, now that beast is gonna RIP YOUR LUNGS OUT