I vape this setup because cotton wicks and VG make my throat swell up, feels tight, weird. not good.

PG and silica are okay

I think the vapourisation temp of PG is less than that of VG, PG does not give thick clouds, so i don't get the kind of thick, almost chewy vape i used to get at 16-18w with 40% VG. 100PG isn't common so it is kind of hard to compare.

It vapes because the wire gets up to temperature, it's just a small coil and wick so the vapour amount is commensurate with that. The aerodynamics of a well designed, TINY atomisation chamber increases "effective cloud"

Explaining the best i can. Cloud chaser rig it's not. But it vapes well enough.