ok I cant stand it anymore so I'm gonna go ahead and raise my hand way back here in the back of the class and ask a dumb "groaner" question:

Having read a couple of times that the ONLY (?) reason not to use propane is the p.s.i. issue, why not just tee in a pressure guage like the gear and brake systems have to insure against overcharging the system, thus preventing burst lines??

I freely admit to being a newb and that there must be a really obvious (duh !!) answer.

Anxiously awaiting my education..........

thx, don.