If the sniper is anything like the hp/ avenger/dominator, SUPPOSEDLY checking that box makes changes in the background that doesn’t require any changes to your maps. Hp/ dominator check box also allows throttle percentage changes to coincide with injector cut in/ cut out. I’ve personally used progresive linkage on a basically stock engine, worked real nice. I never switched from one version of linkage to another on the same engine to see if it does what it is designed to do though.
