Trex 700 gasser with osgt15 hz2
Brand new spirit rpm sensor, setup thr endpoints in the spirit governor menu as the instructions state, correct ratio etc.(checked headspeed with tacho)

Set max rpm to 2100 so that should be 100% in curve menu but if I select 50% to activate governor the head speed max out at 2120 rpm.
Also if I lower max rpm to 1800 it makes no difference at all.

Is it best to get thr range on governor close to 1000 to 2000 as mine are more like 1200 to 1800 and reversed for correct direction.