I think someone posted some thoughts on this in the other thread for you...or either that i'm having major deja-vu!
I did and heres the post.
I have a Silver Bullet I use to vape 6 volts and a Vaprlife VP PT that is 5 volts and for 3.7 I use a PS Protege and a VP-2.
My preference for the most so far is 6 volt vaping. I get more vapor,throat hit and IMO the best Flavor compared to every other voltage. Before I tried either I was thinking 5 would be the ultimate from most of the posts I read everywhere and assumed 6 would only be better for Vapor production but so far I find it to be perfect with 5 volt in 2nd place.
My unbiased recommendation would be to get the Super T SS cause it has the 6 volt option and I bet once you try it you will love it.
FWIW - Allthough I like 6 best I vape all voltages throughout the day and still enjoy all of them.
Derek