Definitely worth hitting up ECI about it....Perhaps you ordered from a phone bank dummy and not a real tech????? The least they should do IMO is give you a big discount on the bigger brakes.....

I would suggest checking pressures with a brake pressure gauge....A good investment IMO....Maybe it's just the old circle burner in me, but I sure do like to know where my pressures are at, especially with a proportioning valve.... I even put them in the drag cars...Consistency becomes so important there we've discovered that even something as seemingly insignificant as getting the brake pressure right when staging helps..... Not as important with a transbrake, but even with a brake, never had a car creep the beam since I put a brake gauge in the car....

I know, I know....This is street, not a race car, guess I'm just competitive in all of them!!!!!!