These are my thoughts, warning not trying to sound condescending, these are just my opinions
1) 22awg is resilient and strong, thus can run them for a long time, only positive it has IMO
2) Compare to even 24 or 26awg, it is very hard to wrap, though it does keep its shape when you do, feels like to me wrapping with a paper clip as wire
3) Resistance is way to low IMO. Back in the heyday of mechs, wanted a low low resistance cloud maker, yes 22awg works, however, see #4 below
4) Ramp up time is way to long with it, as well as cool down time is atrocious when I have dealt with it, anything over a 3mm 5/4 or 6/5 wrap dual coil takes forever to ramp up and cool down when on a mech. Now as you stated above you are running a dual coil 22awg on a Sig150w, probably in the 100 to 120watt output minimum range to get any instant action from it. On a mech with only 4.2v fresh charged battery to deal with, ramp up time takes a while, two completely different monsters when dealing with 22awg.
5) It is not a gauge of wire for your general new vaper or someone just learning to rebuild as stated in #3, resistance is to low in the wire to be experimenting with when just beginning.