'09 Bengal - New String/Cable fps loss?
Being frustrated with the stock string/cable stretch and fast serving wear on my '09 Bengal, I got new Winner's Choice string/cable installed last week and now really confused.
When shop installed them for me, the axle-to-axle was way off and max draw weight low, so went back and we twisted cable to get back to what I had measured prior to change, at 32.375" (claimed factory spec is 32.25").
I also had them change module for me from F5 on Pin2 (28.5" DL) to F4 on Pin 1 (28" DL).....after ATA correction, also adjusted draw weight from previous 64lbs to 66lbs which should have compensated for small DL change.
So along with string/cable change I've shortened draw length 1/2", and increased draw weight 2lbs.......all else is the same, but shooting thru my chronograph, I dropped from 268fps down to 253fps (same 425gr arrow)
I've had some change in speed before on a string change, but nothing close to this drastic.......15fps drop to me means something is wrong....I want that speed back, so any ideas would be appreciated.
Now I will say, more importantly, it bow is shooting very nice. During my re-tune got my first robin hood
Last edited by RLW; 03-01-2010 at 04:03 PM.
2009 Martin Bengal M2 Pro Cam w/factory STS & CCS.....66lbs, 29" DL, 422gr @ 272fps, Winners Choice string/cable, Trophy Taker drop-away Rest, Scott Release
1996 Martin Firecat XRG Pro Series w/Ultra Sonic wheels.....69lbs, 29" DL, 465gr @ 245fps, w/fingers & Martin leather glove