ORIGINAL: Sno-Flyer
There's one way you can definately reduce the blade clack/strikes by 90%... By trimming the lower blades from their original length to 5.5 inches, you can avoid a lot of the blade strikes wihout having to give up hardly any performance or power. A lot of folks have done this because they couldn't get any replacement blades (due to the backorder issues) and were desperate to get back in the air. So, they trimmed down the lower blades that were broken on the tips to 5.5 inches, and Wa-La! Flies pretty darn good and with 90% less blade strikes!
I can see real potential in that plan. Especially when I'm out of town and run outa blades! So, if you trim the upper blades also, what happens? I expect you get more RPM and the performance might come back.
I don't see a darned thing wrong with what you are doing. The big deal with my flybar mod is that I don't get blade clack and my performance most certainly INCREASES!. No compromise.
Good tip and Thank You