I can't seem to replicate the problem anymore, after doing various tests with/without leaves, resizing the trunks before and after multi-rep, duplicating single trees with/without leaves and trunk resizing etc. I know it was an issue, but again I can't remember if that was fixed, I know the "pregnant" tree bulge in the middle of the trunk was never resolved LOL!!

Do atleast one thing a day that scares the hell outta ya!!