alternative to Comp springs?
Are you checking them with the retainer?
Did you run them all down to coil bind 2 or 3 times before testing them?
Can you not balance the seat pressures with shims(and still have ample clearance from coil bind)?
If none of that works for you.... a PAC 1908 would work, but you’ll have to lose some installed height(-.050 locks) for 115 on the seat.