Jimmy: A friend of mine with a major airline gave me the 600 MPH speed tape. I don't know if it can be bought on the open market. It has been around for many years.

RCIGN1: The speed tape is a little stiff, so I made something like a tent over the vent hole. It worked great and the air pressure did not seem to bother it. The G26 sure does a great job with the Ultra Stk 120.

Thanks
Tom