tuning problems

[bowhunter79deer]

I shoot a trykon at 68# 31" draw length with gold tip 5575 at 29",100gr tips and a wb quick shot. My problem is I was triing to paper tune today and im getting a 2" tail high tear that i cant get rid of. I tried to move my nocking point down a little at a time till the aroow tip was way higher then the nock and still no change. im stumped and any help wuold be much app.. Oh and i do shoot a release with a loop.

[gibblet]

those arrows are about a .400 spine. you need to be shooting the 75/95's at least.

[bowhunter79deer]

thanks for the advice giblet but if you look at the charts it falls under the 5575 catagory. I have one more question though on them charts the length listing is this your draw length or arrow length that your suposed to use. I have some cx400 also but according to the chart they are over spined for a 29" arrow.

[gibblet]

a .400 spine arrow is too weak for 68#, 29", and the force generated from a 31" draw. there is no way around that - regardless of the chart. the 75/95's should solve your issues, or at least get past the ones related to arrow spine.

not only are you under spined, you are severely underspined.

[bowhunter79deer]

what about the cx400's?

[wolfhound1]

I have a question:
Does an overdraw slow your arrow speed down? Shooting 65# 29" draw, with the whisker Biscut, carbon fury arrows 4" vanes changed to 2 " Blazers. trying to get a tighter group at about 35-40 yards.

[gibblet]

are they a .340 spine? will be a lot better if so.

[bowhunter79deer]

I dont know if the are a .340spie or not but the carbon expresss' spine out to over 80# at a 29# shaft length acording to the chart. I dose not seem that you think theese charts are accurate so what is your take on these shafts?

[gibblet]

the gold tip chart is known to be off by most of us. i don't know about the carbon express chart.

[wolfhound1]

I'm not sure, it's acarbon fury 6075. How do you determine the spine?