The bow:
Vectrix, 26" draw, 60lbs, 1/4" tube peep, ripcord drop away, 326 grain CX maxima 3-D selects
Test one:
was done 2 weeks ago when the bow was fresh out of the box. I did not wax the string yet andthere were 3 brass nocks totalas a nockpoint system. The 3 shots through the chono averaged 252.
Test two:
was done today with one of those brass nocks removed and replaced with an eliminator button. I'd also freshly waxed the entire string and cables.The 3 shots averaged 253, so a gain of 1. According to the quote below, I should've gained 2-4 fps. I'm thinking that waxing the string added weight and sorta offset the would be gain? What do you think?
Test three:
was then immediately done with the only change being undoing the peep tube. The 3 shots averaged 254. Now I can see test 2 as dismissable but according to the quote below, I should've gained 6-10 fps by removing the rubber tubing. Honestly though, it's hard to imagine that simply removing the tubing could net a gain of 6-10 because afterall, it's not actually a part of the string. So either the info below isn't all that accurate or the chrono isn't. Any thoughts?
String silencers will generally lose 5-8 fps or more (these are very dependent on the silencer design as well as where they are positioned in the string. The closer to the cam you can position the silencer, the less speed you will lose as a rule.) A brass nock means a speed loss of 2-4 fps. Rubber peep tubing robs 6-10 fps. Rubber e-buttons cause a speed loss of 2 fps each. And a string loop, without brass nocks, causes a speed loss of 1-3 fps.
This is where I got the quote:
http://www.bowhunting.net/artman/publish/BowTechJuly.shtml