Another part of the tangle path I've followed in
vaping.
I used to be a fan of small chamber atty's. But like the O-16's they are better suited for MTL/restricted DLH IMO, and my vaping style is monster DLH's. The O-16's did work good enough for me when they first came out that I bought 4 of them. But that was mainly because they were bought for 4 of my Mini 1.0's, and that combo made for a nice compact shirt pocket carry when I still used them. My shirt pocket carry now days are Eleaf Pico Squeeze squonkers with 22mm atty's. Across the board I've moved up to using 22mm & 24mm atty's on my Reo P67's/2015 Woodvil's and many other mods (that also get 25mm & 30mm) when I occasionally use them. With their extra low builds they net me dense/rich clouds with better flavor than any of the smaller chamber atty's did. I'm especially fond of my 3 Mesh RDA's... followed by 6 Kryten's and 4 Goon's right now. So the dozens of small chamber BF atty's I have are pretty much yesterdays fodder along with almost all of the other Reos.