It's not the draw, I'm dead on with that, well I may be quarter of an inch off, but I'm pretty close. I have not had my bow near a chrono in a while so I am just guessing at the speed thing. When I change my string and harness I will recheck all the specs and chrono some arrows, then compare it agian. It might just be me in denial. I came up with under 200fps for my current set up, not what I was hoping for. I have a few questions about the program though. If I think about it I will PM you at eders. No problems with it, just stupid things about some of the inputs. Like the distance from the peep to the sight pin, or peep to the arrow. I don't have a peep, I use a hindsite. Also when your figuring speed and spine, is there a way to take into account for the amount of weight on the string? Like for your peep and nock. If you used a peep with a tube and an ultra nock, that would be a lot of weight and would effect both factors.

So far I think the program is pretty cool though, the spine calculator is awsome. Much better than using the standard calculators and charts and then guessing if it will be right for your bow.

I figured you would comment here, thanks.

Paul