by Don
(SF Bay Area)
A shop I use to work at switched to Propylene years ago for a long time, I used it for several years and liked it, it didn't seem that much different once I got used to it.
It was very easy to get use to. I still have my tips. The shop I work at now uses Acetylene.
It doesn't matter to me which I use for cutting Propylene or Acetylene.