I have machined 2 mounts, one for the BME44 and one for the BME50. Obviously, the mounts are identical. I made some improvements on the new on making it lighter. The mounts that I made make it VERY, VERY easy to get the engine mounted to
P E R F E C T L Y line the prop shaft dead center of the cowl hole.

I have to say though that since this is custom work, I spent about 11 hours machining each one.

I have not tried them, but they say the Hangar 9 mount works well.

Jeff