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mmmike
01-14-2010, 10:23 AM
I'm a newbie to this place and also a relative newbie to archery. I purchased an '09 Firecat in Feb of last year. The shop I bought it from did all the setup for me (draw length, rest, etc...). I am shooting a 29" draw with a loop and the bow is a maxed out 60 pounds. It's shooting great but I bought the bow for hunting and the letoff on it seems....well let's just say I can't hold the bow at full draw for very long. How do I increase the letoff so I can hold at full draw with more ease?

Got a 5x6 bull with it last September, by the way;)!!!

Spiker
01-14-2010, 11:37 AM
Congratulations on the bull !!!
As far as tuning the C.A.T. cams - the best way is to get on archerytalk.com
forum and do a search for C.A.T. cams. There is all the info you need there and it is just to much to type here. There are also alot of threads here about them and links.
Just IMO - everyone has always rated the Nitrous cams as the best ever produced - and I really like them too, I have a bow set up with the Nitrous X setup - but the C.A.T. cams are just as awesome, if not better overall.
Anyway - they will let you set up the holding weight any way you want it, just do a little more research and you should find your answers. If not - ask more cuz a lot of people here are willing to help out.

mmmike
01-14-2010, 09:59 PM
Thanks for the tip. I looked around a bit on AT...sounds like to adjust letoff I need to tinker around with the draw stop?

Spiker
01-14-2010, 10:12 PM
Yes.

In order to get rid of the "hump"....

here are the steps.


Step 1.

Remove the screw out of the DL module
and rotate the DL module,
and re-install the screw for the DL module
into the hole that is 1/2-inch LONGER than your correct DL.

If you shoot 28-inches,
then install the screw into the 28.5-inch hole
on the DL module.



Step 2.

Start twisting up the bowstring,
i.e. ADD twists to the bowstring,
to shorten the bowstring,
which will adjust the starting rotation position
of the bottom cam.

Keep TWISTING and TWISTING until the bottom cam looks like this picture.










The bottom cam has a hole near the logo.

As you keep ADDING twists to the bowstring,
the bottom cam will rotate
and the edge of the hole will get CLOSER and CLOSER
to the face of the bottom limb.

When the edge of the hole just kisses the face of the bottom limb,
then you have added enough TWISTS to the bowstring.


Now,
obviously,
the bowstring is much shorter than NORMAL.

So,
you may find that the bow DL setting is now too short for your liking
or
you may find that the bow DL setting is a skosh too long for your liking.



Easy fix.

Adjust the bow DL just right,
by moving the draw stop in the slot.

Make teeny tiny adjustments,
to the draw stop position,
until you get the draw length setting you like.

Hump will be ZERO.


So,
what if the DL is now perfect,
and the HUMP is ZERO....

but,
the holding weight is too high?

Well,
move the draw stop away from the riser,
and the holding weight will drop down.

But,
when you move the draw stop away from the riser,
the holding weight goes DOWN,
but the DL also goes UP.

Well,
just add more twists to the bowstring,
and the DL will shorten a skosh.


As long as the edge of the hole in the bottom cam
is pretty close to touching the face of the bottom limb,
the HUMP will be ZERO.


(not sure if the pics will show up when I post this but think you will figure it out anyway...
This is a post made by Nuts&Bolts on AT)

Scott

Spiker
01-14-2010, 10:13 PM
...yeah - the pics didnt show up...

'''''-----rats----->

rjd
01-17-2010, 04:58 PM
Here is a link to the cat cam thread with a lot of advice. Lots of reading some of these guys have got theres smokin'. Get to reading. The pictures are great . Good luck. http://www.archerytalk.com/vb/showthread.php?t=626601&highlight=cat+cams

Rockyhud
01-18-2010, 11:06 AM
I can attest to how well the AT tuning threads have helped me get my Firecat shooting better.

mmmike
01-18-2010, 11:34 AM
Thanks for the info. Got the letoff set to where I like it. Some of the info on Archery Talk is over my head but the more I read the more i'm picking up on things! Very Interesting thread on the CAT Cam tuning....may have to give it a try when things warm up enough to shoot outside.