the lack of competant pro shops heavy on competant in my area were nill when i started shooting so i became a do it yourselfer. i thouroughly enjoy preparing my tackle for its intended purpose. 90%percent of your maintance/repairs can be done right at home with a modest investment. for example a chrono can be had for less than $100. ther is a plethora of information on tunig and maintance. i hope i didnt step on anyones toes in trying to encourage someone to do there own work. another thing to consider about speed. i feel that speeds much over 270 make broadhead tuning more difficult, hence the massive movement toward expandables. im shooting about 260. i use one pin out to 30 yards. the longest shot i have made in the woods is 28 yards and that was a doozy, truth be told it was a shot i probably should have and wouldnt take today. consider the hunting you intend to do. a heavier slightly slower arrow is going to penetrate better and get there quieter. but i guess to answer your question a chrono is the only way to tell your fps.
"please join the N.R.A. as well as your state rifle association! these are critical times for ALL gun owners. Be informed, be active and stay vigilant"