I have not read your whole thread....but if you have a gram scale -weight them and balance them...not rocket science, "Google rod balance" and will show you ez way for home made end for end gig. Again leave the pistons in the original cylinders.....if they all weight the same they will be happier anyway

Thank you all once again. I really appreciate the support and replies, I just can't get enough of these forums....lots of good people here!

Best Regards,

Alex