RE: estimate my speed please
Guessing from the Switchback setups I have seen, I would say the above estimate was very close. My guess is just a bit slower though....somewhere in the 265-270 range.
It doesn't matter how fast your arrow is going when it misses. Keep your weight/speed managable and hit where you aim!!!
Hope I'm Right....let me know if you ever find out for sure.
Dave in WV