Still having vibration issues on my 582 B-box with GSC prop. I noticed one blade is a 1/16" shorter than the other two. This is a factory new prop. Is this normal or maybe how they would balance the prop? I'm fixin to pull the prop and weight each blade. I also have a question on the old style motor lord mounts(flat plate). Do you tighten the bolts up to the inner sleeve or do they get torqued to some spec. Couldn't fine anything in my book.