You may as well throw all of those measuring methods out the window.

No two bows are set up to have the same draw length. Many of them fib at least alittle to get their published speeds to look good on paper. Mathews is usually about a 1/2 inch longer thantproper ATA DL. Bowtech is generally pretty close to proper ATA draw length. PSE is another that fibs on their draw lengths. No two bows will measure to have the same draw length.

If you are a true 29" DL you would likely fit perfectly into a Mathews with a 28.5 inch cam. Same for PSE.

Measure your draw length on the bow that you intend to purchase.


Most of the time I can look at someone and guess within a half inch of what they fit into.
Sometimes I run into someone that is just built funny and I am a little more off.