Crank question

I spent two days grinding and smoothing up my crank,looked polished,then sent out for balanceing.Might not have gained anything,but if It got me 1 more hp it was worth it to me,and just might bee the reason I have six records.I know it definately didnt hurt and possible helped.I built my motor that way.Did LOTS of things that could only possibley add a hp or two and its made me happy I did everything that might have gained me hp.Alot of what i have done probably wasnt needed or helped,but when I am done I know I gained something.Gratifacation.And which one made my car stupid fast.Guzzi Mark