The P40 spinner broker with both glow and gas engines , I was part of the guys who purchased the plane when released , no nose over , no over tighten , no over use , no CSI investatgation , deal is , not made strong enought for the common use . If it was a typical consumer product there would have been a national recall for safety , while I love CMP , I am not a fan of how they handled the problems and incredible danger they placed modelers in .
If you use the CMP Be109 spinner or the CMP-P40 spinner, please be awared its a flying time bomb of scrapnel , its not a matter of "will it break" its a matter of when .
I immediatly moved to a Gene Barton spinner for my P40 and recently bought a carbon fiber version from Hobby King .
As far as the Bf109 I have the one that Ty made .