Yes an lpr does help, but it's not needed. Just look at the luxe, although it isn't a poppet. From what I've noticed, lprs in poppets are not that useful. Most the time its just there to keep from overpressurizing the solenoid.
Yea but what about when it's in like a DM? Those guns are just quiet as a mouse with the lpr tuned good and the g6r getting its crazy efficiency numbers? Im not saying its needed but it's still impressive getting a good shot from a poppet with no lpr.