Just got my first order of PJP-N 15x5 props and am surprised that they don't seem to be well balanced. Using a Dubro balancer 1 pair was good, 3 pairs had one prop out of balance and the last pair, neither were balanced. I was able to balance most of them by using a bit of scotch tape near the tips and small bits of electrical tape to get the hubs balanced. But while I was able to get the tips balanced on four of the props the hubs appear to need .38g to .70g to balance properly. I checked this by using double side sticky tape and a series of small washers. Checked their weight on an electronic scale that I use for measuring powder that I calibrated. So a couple of questions. 1. What is the proper balancing procedure for XOAR wood props? 2. What should be done for hubs that need this amount of weight? How should the weight be added? 3. What would be considered a prop that is to far out of tolerance and should be returned (i.e. is .70g excessive).