Soloboss,
First off I owe you a huge THANKS! For your guide on cx helis. I'm new and have been only flying for 3 weeks and without your guide I'd probably be grounded by now.
I will be looking into buying some upgraded blades in the near future.
Could it also be the weight of my blades? My first set of blades where covered with so much tape/glue/expoxy that I was amazed that it could fly, but never had blade to blade clack. Right after I installed brand new balanced blades they went BANG!