Anyone Chrono thier bows?

[snag]

Blacktail TD recurve,D97 string, 55#@28", 29" GT 5575 carbons=185fps.  I don't remember the arrow weight. I believe it was around 520gr. I say this because I try and stay around 10gpp. When I am target shooting. I have gone heavier for hunting.

[peter c iacavazzi]

Dave,

What broadhead are you planning to shoot out of that set up?

Peter

[ChristopherO]

Pulled out the Chrony this evening to see the speed of the GT Hunters 35/55 arrows from the Martin Pioneer 50# @ 28".  These arrows are full length of 30".  Tipped with 125 grain field tips, an old wasp 3 blade broadhead and a 2 blade bh.  The test consisted of inserting 2 weedeater strands in a tube that gave it just over 100 grains extra weight and shooting them through the chrony.  This put them at nearly 520 grains.  At my draw length of 28"+ the heavy arrows shot in the low 160's with the fieldtips and BH's.
Removing the strands set them back to just a tad over 400 grains or 8 grains per pound of draw weight.  Their clocked speed was in the mid 170's or 12 - 15 fps faster than the weighted shafts.  
My observations were interesting:  The unmodified arrows had more FOC balance by at least an inch than those with the full length weight.  And the BH's shot better without the weight than with it.  
Anyone else have this type of experience?
At this point I will hunt lighter and make sure the edges are super sharp.

[steveinpa]

40# Savannah chrono'd last year at Denton Hill was 146.  Forget the arrow weight, somewhere @ 9 or 10 gpi.