View Full Version : 29" draw 65% on 07 Synergy???
01-19-2008, 07:12 PM
Just bought a new 07 Synergy and would like to have at set at 29" draw and 65% let off. Mod chart is shows mod should be at number 3 for 29". Nether one of the sets of mods has a 3 on it. If I go to 29.5" draw and move the draw stop short will that get me what I want? Thanks
01-19-2008, 09:55 PM
If both sets of mods have 1 and 2 on them they are the long draw mods. Shortning the drawstop would decrease your valley/lower letoff/possibly under rotate cams and make the bow less efficent. I would recomend using the correct mods #3 position for 29" dl to have the best performance .
01-22-2008, 08:32 AM
I believe to get the 65% you need the speed mods which Kevin dosent make anymore
01-23-2008, 02:12 PM
Position no. 3 is on the short draw mod set that is available from Brokenrackarchery.com on the trading site. Once you've got the draw length corrected there is no problem getting the desired letoff by moving the draw stop - it should be less than a 1/8" correction.
However, the bow is not as efficient because you will be shooting from the slope. IMO binary cams really work best when shot from the floor of the valley: 75%-80% letoff. Besides, speed bows like the Synergy shot at 65% aren't very comfortable because the darn thing is going to try to pull your shoulder out of its socket if you creep even a millimeter.
01-23-2008, 02:15 PM
I had the same problem w/my synergy. There wasn't a 3 on the mods, and I had both long and short draw mods. Called Elite and they sent me another set with the three on it. BUT, after I got them I checked the original set and, although it did not have a three, if you count the holes you will see that they are not numbered correctly. Mine went from 4 to 8 on the old ones and 3 to 7 on the new ones yet they were the same otherwise. I had the same number of holes in the old one as I had in the new ones, just numbered differently. As far as letoff, it is controlled by the limb stop and you have to be able to draw the bow with a digital scale and figure out what weight equals 65%. You will lose a lot of your valley when you drop down to 65%. (At least I did.)
01-23-2008, 11:43 PM
Correctomudo! The power curve slope from peak draw to the floor of the valley on a binary cam speed bow like the Synergy, Allegiance, X-force etc. is almost vertical. Not only is shooting at 65% uncomfortable, you lose a lot of KE by doing that. Remember, when looking at a power curve on a compound bow, the area under the curve represents stored energy.
The steeper the slope the higher up the slope you have to move to go from 80% to 65% and the more of that area under the curve you cut off. I tried out an Airborne 101 the other day and boy was I relieved when that cam rolled over. I did not buy it since I'm quickly becoming an Elite Fanboy but if I owned one I wouldn't dream of shooting it at less than 75%.
Shooting at 65% is better left to Hoyts, Mathews and other pokey stuff.
01-24-2008, 01:15 PM
Thanks to all who replied. Headhunter that is the same with my mods, they are just miss numbered. I might have to set the draw stop back to the way it was, I don,t like to shoot at 80% but it holds a lot nicer in the valley instead of climbing out.
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