Pulse bf squonker came in today. I really like it - a very affordable, compact, 20700 mech squonker that also has an 18650 adapter.
I give the
predator mech a plus for firing button (short throw, feather light touch), but otherwise prefer the pulse. The one caveat is you need to use a silicone 510 refill bottle ($7 - $8 for yftk or Therion, from FT); with the 510 bottle it's a simple refill, without it it would be a pita.
I'll take this, with a spare pulse 24 coil, for my trip. I'll empty the bottle and switch to a wasp nano
rda during the flights out and back (in the airports), otherwise the liquid from the squonk bottle might get forced out at altitude.