Gosh, that is a good job! Don't get down about the speed, your talking 13.75 gpp. Most guys that tout 180fps and higher are shooting less than 10gpp. If you can get 175+ fps with 10gpp you are right there in the average to compare to normal testing results. That is not bad for such a heavy arrow. That's not slow. Shoot a 480 grn arrow and see what you get!