Theres nothing to disagree with here in this thread, stem heights between your heads vs others can be different.. so we are just sharing our experiences here and yours was good, which I am definitely glad to hear. There is gonna be yays and nays expectedly because we dont have the same heads or machinists....so its differnt heads, ,different spring diameters, different amounts of seat grinding/stem height, valve lengths etc... we are bound to have different experiences/turn outs...but this does give us all good info if shared in its entirety. We can know with what stem height, spring will work on such n such head perhaps.