Bowman.. I've heard that as well..
I plan to do it .. just to make the propane molecules a bit heavier (which is probably why the temp goes down) and also to help cure some of propanes insane flammability
My PSI was at 225 ish on the high side and jumping aroune 12PSI and 8PSI on the low side.. The temp was around 5F.. that is to high.. my compressor on the top is 180F.. the condensor is equally hot.. just the high side line going to the condensor.. it is seriously hot.. i accidently brushed it with my finger,.. i got burned!
I let some of the propane out.. the high side PSi went down to around 200.. 210.. the temps started to fall.. last I saw I was at -12F.. and around 5-10PSI on the low side..