If you really mean the coil is getting red hot as in actually turning red/orange glow after 3 seconds, it's not getting juice. No matter what ohm your using a wet atty shouldn't be glowing after 3 second hits or much longer for that matter. I can easily do over double that on my clearos with no ill effect as long as the atty is getting juice and I don't have the voltage set to high.
It sounds like you've done all the usual recommendations, fluff the wick, removing the seal around the cup. The only other thing I can think of if you're re-inserting the seal around the cup is to cut an upside down v shape on both sides where the coil runs through it into the cup. That'll give the wick more room and when you're re-inserting it don't push it back down all the way on the cup, just enough to where it fits around it and seals the juice then when you insert the ring and tip it should push it the rest of the way down to the right position without going to far. Also turn the pv upside down before each hit for a few seconds, that gives the juice a chance to get around the wick. Since I started doing that I've never had a dry hit on a CE2.