RE: General question on fitting props
I did notice quite a difference in heaft between the 20x10 APCand the 22x10 Zinger. I just weighted them up and the APCcomes in at 203 gms vs 106 for the zinger. On a size for size comparison, the wood will be half the weight of the APC. That 3.4 oz difference that far forward will make a bit of a CG change, if nothing is changed but the prop. Lots more to consider I guess.
Don