I have the shooting chrony F-1 and it works well for me. It is as accurate as your standing position. As long as you are 3 feet back from the chrony as it says to be it is always consistant to within 1.5 fps shot after shot. Mine works great in my basement with the lighting kit. The chrony was $80 thru cabelas and I believe $30 for the lighting kit. Radarchrons are around $100. I say for $10 go for the chronograph.