After weighing my new K-1 H-Beam rods,the lightest to heaviest is a difference of 5 grams. Should that be a concern when having the rotating assembly balanced? My friend from Ohio says NO...but,my machinist seems to think it should be balanced with the balancer(externally) Who's right? I didn't think 5 grams was enough to worry about...since they have to be equalized anyway! School me on this,"Engine Masters"!