I picked up my 9/40 Infinity in person, I was shocked at the amount of grease they put on everything, Lucus Red N Tacky, Casey recommended lubing it the same way, with 6 drops of Blue Oil on the rails, shooting the same ammo in my STI Marauder only lubed with Mobil 1, the difference in felt recoil is quit noticeable, yes the Marauder is lighter, but my Infinity sights seem to return to target faster, with the 40 barrel in shooting the recommended load of 5.2 N320 180 loaded at 1.2, I have found that 40 can be enjoyable to shoot, since this is probably my only Infinity I’ll ever get I plan on lubing mine with copious amount of Red n Tacky with blue oil on the grease on the rails