Im going to a heavier spine. Anyone have a formula to how much speed I will lose from going with a 500 previously? I have been using 300's and told Im seconds of shattering and arrow. The charts say Im on the border. My setup is 70# dw on a Hoyt with 30 In dl. Im looking for a hunting arrow and have been advised to go with the 500's but have no clue what, if how much my speed will be sacrificed...even if its enough to be concerned. I would rather be shooting a safe arrow, with minimal weight and spline for optimum speed...but is it a consern?

Im also looking for a pre-fletched ,either straight-offset or helical fletched? Where is the best archery supply to purchase from? BGFish suggests Lancaster Archery Supply...any pro's or cons's of this place or could you suggest and alternative source? Is this typical for a setup for fixed bh or mechanical. Im planning on shooting a G5 trykon and have noticed that my arrows are low and right.Would the offset, or helical fletched compensate this?

I want to be prepared to take the 200 plus 8 pt I know is still around, but I would hate to meet up with him and not be prepared. Anyone make the upgrade from a 300 to 500 without alot of resetting pins, etc.

Also at full draw I have an inch of arrow on rest. Would I get better preformance to cut it down anyfurther?

Preciate the input!