That's interesting - I ended keeping both the top and bottom bits of those BCP shims.

They needed sanding down to fit, but fit good and allow some swing just like the stock setup!

I think she is ready to try to hover again.

It was VERY tedious getting the blade tracking correct - but I finally got it pretty close. I see no obvious bad vibration in the system at any power / pitch level. whew!! Bench testing - PASS!

What I did was modfiy the plastic grippers that come with the Blade CP blades. They needed sanding down and trimming quite a bit to fit well in the Axe blade grips. They are needed because they have a plastic ferule that sizes down the big hole and fits the Axe blade screw perfectly, BUT they are too thick to fit in the Axe grips along with the blade.

Also, I had to sand down the inside of the Axe grips just a bit.

Getting the tracking close was so tedious I was thinking, oh rats, do I gotta pull everything and go through that tedious blade balancing procedure?

But I was only going to do that if I ended up with an undesirable vibration and once the tracking was dialed in she sings again in perfect tune! At all levels of pitch and throttle, everything looks pretty good.

I'll fly her again tomorrow at work - VERY timidly!!! Basically, she's an experimental aircraft all over again - can't take anything for granted until she's proven herself again.