IMO, better taste with lower voltage
I've swapped a CO2 sauce cart between V-Mod at 2.6v and Palm at 3.7v to compare, and preferred the lowest voltage. It's a pain swapping for the taste test. Damn designers can't standardize the magnetic connectors. Vapmod V-Mod mag connector won't fit in Palm or Silo. Palm fits in V-Mod, but draw too restrictive
The preheat really helps with clogging, especially on last half of 1g carts. Suction pull to clear clog is manageable after ten seconds of preheat -- eyeballs don't pop out of head and blood vessels remain intact
If any battery offers selection of low voltage, and preheat feature, the remaining ergonomic factor is personal preference. I don't like the pen form factor. The super small imini types are a bit too small for me, difficulty with tiny buttons. Ordered another Vapmod V-Mod, for day vs night cart strains, vertical standing and no swapping