Good Morning Len,

Thanks, that does help. Now for one other stupid question - how do you know when an arrow is spined correctly for a particular set up?

The charts are easy enough to read, but they are limited in the information that can be factored in. The computer programs such as OnTarget are impressive, but they sometimes seem to take too much information into consideration.

If I buy a dozen arrows that the charts and the computer says are right for my rig, is there a way to make the smalladjustments length and point weightthrough field testing?

Thanks,
Allen