Hi and welcome,
How long did you use the DR/
smok set up?
How is the DR set up?
What coil(s) are you using? coil material/ID/wraps/single or dual/wick material/resistance displayed?
What power level are you using? Watts (Temp if using TC mode)
Have you recoiled or re wicked the DR recently?
What is the flavour/brand and PG/VG ratio of the
juice you are using: in the
smok/DR, in the Minifit?
Did you have any issues switching to the minifit and it's more restricted, slower draw technique versus the strong, sharp "gulping " draw needed for the DR/Smok?
Cheers
I