A&H ACS Dynamic Spine?

[toby]

I have a 39#@28", 62" bow on the way. I draw 29". When I run the numbers through the 3 Rivers spine calculator I get a Dynamic Spine of 67. My Pinnacle 2 with 46.5# limbs has a Dynamic Spine of 55.

Can the ACS have that much more? Maybe the calculator is making an error.

I ask because I am trying to determine what arrows to get.

Do these ACS bows have that much more potential in them?

[Big Sneaky]

From my experience yes.  Seems when you combine high performance limbs and the fact that the riser is cut past center, it requires a way stiffer spined arrow.  My current setup is an ACS CX that is 54# at my 30 1/2" draw.  I shoot Easton FMJ 300's with 150 grain point.

[toby]

Big Sneaky,

Thanks, that must be a sceamer.

Toby

[JRY309]

My A&H ACS takes a stiffer spine then my other bows of similar weight.I even built out my side plate,I believe A&H risers are cut 3/16" past center.

[Kris]

Yes, they do have that much more "potential".  I can easily shoot CX 75/95's out of either my 51# or my 54# ACS.  I also shoot MFX 340 out of either.  What works best are the 400's Nanos or the MFX.  I draw 28".  

I typically front load 300gr. - 400gr. so stiffer is better in my case.  Many other tuning adjustments influence what one can shoot,  ABT (Always Be Tinkering)    

Kris

[toby]

So is it that they are cut that much past center or the limb design that gives them more potential.

Kris, I like that "ABT".

Toby

[Shawn Leonard]

Both, you will still be able to shoot a .600 spine At 30 inches with 175 grain point, if you go to .500 spine you will need lots of point weight and a 30 inch arrow, around 300 grains. Those calculators have everyone overspined! Shawns

[fz4vgq]

1 piece or 3 piece ?

The 1 piece bows are cut 1/16" past center but with the 1/8" thick Velcro shelf material it brings it to +1/16" .

[Caughtandhobble]

The 41# ACS that I had shot 500 spine 29.75" with 125 grain perfect and I have a 29" draw also. Good luck, I don't think I would try a 600 spine arrow having a 29" draw lenth.

[toby]

It's a one piece.

Caught, thanks for the arrow info.

Toby