here is the info on the leaking im seeing with my Reo grand.
1. 3.7-4.2 (unregulated mod)
2. 1.8 Ohms
3. black
4. 100% VG
5. Boba's Bounty
6. fills the catch cup on my reo in about 30 seconds to a minute
7. unsure, primed it with 10 drops then starting using the bottom feeder
8. I primed the atty with about 10 drops of liquid and let it sit for a few minutes to see it it looked like it was leaking and didnt notice anything, I then hit it a few times and then used the bottom feed to replenish juice and then it started leaking, I may have flooded the atomizer but I seemed to get much more leaking then I ever do when using a 306 so I don't think that is the only problem. When I get home from work I'll meter a battery and make sure I am at 3.7 and give it a shot. Can't wait till you get these fixed as the flavor is awesome but the overflowing catch cup can get annoying.
--edit-- tried again with a battery metering at 3.7v and it still leaked, it might be possible that the mesh was already disrupted from the first time I tried to use the atty though as its still leaking a rather large amount. If it would help I can send my atty back to be dissected.
Try using the Danco #83 O-Ring, slip it over the Atty and push it down to the catch cup, adjust to your liking on the draw it will creat a vacuum and Auto feed your Atty and you wont have to Squank the juice bottle anymore and should Auto feed this Atty just about perfect, as well you wont get anymore leakage at all. The Oring will give you Auto feed, no leaks, and adjustable draw, takes alittle to get it set just right but once you do it is Blissful vaping 101