If we are to assume you get considerably more revs, throwing the ball at that slow a speed( as compared to your "thumb-in" speed)....then I would suggest that you go pin down, and slightly left of your middle finger. I am assuming you are right handed also.
The Hornet is sneaky strong! It looks like it won't get there a lot of times, but it always does, and scatters the pins well! Just my 2 cents.
Good Luck!
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Duct tape is like 'The Force'. It has a light side and a dark side, but it still holds the universe together.
Some days you're the bug; some days you're the windshield.