my first step for wood,props, is to maks a plug fot whole that just pushes in with finger pressure to find the center then measure to the tips to make sure the pre drilled hole is in the center ( hav found them to be off as much as 1/8 inch) span wise ie: tip to tip and the hub off 1/16, not offten but over my 40 years of flying rc .15 to G-62's and when I find one I have allways sent it back to the mfg at my expence with a polite note, and hace allways had good results generaly I have gotten 2 for 1 and a thank you note

once that is done I have used both balancers but I like thr du-bro best, and over the years I have a set of steps that works for me.
and once you have the center hols right balancing is a lot easer.

Hope this helps