I really don't know if a properly made string would hurt your bow or not--I couldn't reccomend going against the warranty.

I've never chronographed dacron vs. Dynaflight. I don't think there would be much difference in speed--you'll gain more by going with a lighter arrow, but you may also gain noise.

True. But also, with a lighter arrow, you sacrifice penetration.

Before i go any farther i must tell eveyone I am a horrible speller so PLEASE ALL BEAR WITH ME.

We don't have any white tail deer here just mule deer and they are nomatic to say the least. I can set up a blind or stand up north but the mule deer don't cooperate with that. The elk do take a lot of the same trails but still are not bound to those trails. If I were you watch some videos of olympic shooters and copy as much as you can. Practice at long range, it will magnify your mistakes. This doesn't mean you have to take long shoots. It will make your close shoots even better and you can increase you distance as you get better. It can't hurt. I will be getting my arrow speed today so I am excited to see what it does.

The problem here is we don't have white tail, only mule deer and they are nomatic. setting up a blind just doesn.t work. Elk will take the same trails but even then you can't count on them coming past you blind. I would advise everyone to practice 20 yards farther than what they feel comfortable for their shooting range. That does NOT mean they have to try it when hunting, but it will make the close shoot even more consistant. I had my arrow speed checked. I am a little dissapointed but still 192 FPS isn't bad.

Kinda depends on the shooter, and bow design, but you can see up to 10 fps faster using modern HMPE (so called Fast Flight material) over Dacron. Also having personally destoyed a bow, blew the limb tips clean off it, by using HMPE on an old bow not built for it, if the manufacturer sez "Don't do it!" well, my suggestion is ......DON"T DO IT!