Well, FYI I installed one in my .22 Renegade regular and between 135 and 140 bar got me around 865 FPS with 18.1 grain JSB. I’d say a good starting point would be 145 to 150 bar.
My .25 Renegade HP with an external regulator set at 190 bar gets results similar to the factor test sheet. Gonna get a Huma to improve shot count but expect perfromance to go down. Let us know how it works out