Mike,
What's your main
mod these days?
Around the house I use 2 full size single 18650 Dicodes Dani's w/ Kayfun Primes & the extended tank setup. If I'm out-the-house or doing working around the house I have 1 of two Solo's topped with a Hastur MTL RTA by cthulhu mods (the full size version, I think they only make a mini 2ml version now). And there's one more Solo topped w/ a Nautilus GT incase I've been lazy and all my coils/wicking are gunked up I can just pop a new coil (if needed) into the GT and keep on
vaping.
I used to keep 2 Radius's and 2 JAC's in rotation too, but they've been sitting on the shelf for a couple month's now. Trying to keep the maintenance down, less mods being used, less time changing wicks.