It was a slow burner for me which initially had me kicking myself for spending £60 second hand on; but spending time with it let me appreciate how much flavour it pulls out compared to anything else I own. I struggled with it on a mech as I prefer a bit of oomph, but dual parallel 0.32mm at 0.3 was good on the Paps, maybe even a touch rowdy. Definitely try dual 0.4mm on a regulated device, comes to life at a bit more than a mech can provide IMO.
If it transpires it's not for you then you'll lose little on it, seems your fairly committed by buying the velocity style posts though, I'll order a set next week. Have to say I'm disappointed that Eden mods didn't include the velocity posts as standard on the latest batch.