One of my buddies came over today with his Mathews Switchback XT. The local archery shop (same folks who don't believe in paper tuning) had set up this bow. He couldn't get broadhead and field points to hit the same. His arrows (Vapor 4000) were marked as being for bows in the 55 to 75 lb. range.

First thing I did was check the pull weight. 51 lbs. Archery shop said it was 70. So we turned it up a little at a time until we got to 65 lbs. - a point at which he said it was the upper limit of comfortable. Then we started paper tuning. Moving the rest to the right a little at a time, we finally got to the point where the arrows were going through the paper straight. The rest was now so close to the riser (1/4") that a broadhead wouldn't clear - and the sight was maxed out as far as it would go to the right (RH shooter).

So we moved the rest back to the left until abroadhead would clear the riser. And started shootingfield point vs. broadheads. Messed around with it for about and hour, and finally got the two types ofheads shooting the same spot. The spot where this occurred was, incidently, almost exactly the same setting we started with initially.

I guess paper tuning is just a means to andend - and in this case, the bow shoots well and the field point andbroadheads hit the same spot. But what went wrong with the paper tuning here? Although I don't have any charts for the Vapor brand arrows, we were right in the middle of the range for pull weight - using 29" arrows and 100 gr. heads. Any ideas from you tuning gurus? Thx. Roskoe