Giacomo Arrighini the famed Perazzi gunsmith that came over from Italy in the early 70's to work at the Ithaca factory on Perazzi's swears by Triflow. And it is what I have used since the 70's on all of my guns. His son in law has taken over the business now and IIRC he recommends Slip 2000. Neither of them use grease no what the guys in Italy say. Either way I feel it is most important to keep it clean. Wipe the old off, whatever you use, and apply new often.
Here is just one thread on TS.com from 10 years ago where an Australian has his MX2000 gall and he used Perazzi grease. Notice that pretty much all the American shooters told him that Giacomo recommended nothing but TriFlow.
Link My JEG target gun has more than 100K rounds through it. Triflow has worked well for me
