i have been using an SLP on my EGO 07 and 09 with absolutely no issues whatsoever. My 07 has an LP valve in it. but my 09 has the stock valve and they both shoot phenomenally. As far as efficiency, i was getting around about 8 pods and a hopper off of both guns with a full 68/4500 and a snug paint to barrel match. lpr on both guns is turned in 2 full turns.
I have also had success using my SLP on my invert mini, i however have done much less testing with it. i still have faith that it would perform well, and i did notice that it was easier to unscrew from the ASA threads of the mini...
what do you know it also shot really well on my G6r and my ripper
This upcoming weekend i was going to practice with the SLP on my luxe to see if it would perform well too, i predict good results.