Do pivoting limb pockets...
 

Allow a bow to operate at peak efficiency no matter the weight setting?

It' s always been stated that a bow with the limb bolts maxed out operates at peak efficiency, and backing out the limb bolts to lower draw weight and " adds slop" to the system, and efficiency potentially suffers.

Do pivoting limb pockets, which keep the limbs tight and secure no matter the setting, solve this?

Would a 70-80# draw bow with pivoting limb pockets backed down and set at 70# shoot the same as a 60-70# bow maxed at 70#s? How much brace would one gain with the backed down 70-80# bow over the maxed out at 70#?

RE: Do pivoting limb pockets...
 

I always thought it had something to do with cam position, but I really don' t know. I' ve been trying to figure out the advantages of pivoting limb pockets for some time, without success. Maybe that it one of them, but I doubt it.

RE: Do pivoting limb pockets...
 

I don' t know how these multiple posts happened - I hit " okay" only once.

RE: Do pivoting limb pockets...
 

same

RE: Do pivoting limb pockets...
 

No, a 70-80# BowTech bow backed off to 70# would not shoot the same speed as a 60-70# maxed out. [X(]

The reason being that when you back off the limb bolts you are effectively changing the angle of the limb in relation to the riser:(.

You design a bow to work at a predetermined limb angle and preload;). This is the reason you see so many different angles of risers where the pocket bolts on.

A pivoting pocket is designed to keep the limb from shifting side - side when the limb is backed out[8D]. The limb is fully trapped in the pocket regardless of draw #.:D

This is my opinion on BowTech bows, I' ve tested other bows and found this to be true of them also.:D

RE: Do pivoting limb pockets...
 

Not to mention they tend to make for a quieter bow as there is no space between the limb and pocket creating a " sound chamber" effect

RE: Do pivoting limb pockets...
 

Mr. Bowtech,

When the limb angle is changed by backing out limb bolts, does the cam position change? If so, does the cam position have an effect? Also, when this change in limb angle occurs, does it change draw length?

RE: Do pivoting limb pockets...
 

Mr. Bowtech,

When the limb angle is changed by backing out limb bolts, does the cam position change? If so, does the cam position have an effect? Also, when this change in limb angle occurs, does it change draw length?

RE: Do pivoting limb pockets...
 

Mr. Bowtech,

When the limb angle is changed by backing out limb bolts, does the cam position change? If so, does the cam position have an effect? Also, when this change in limb angle occurs, does it change draw length?

RE: Do pivoting limb pockets...
 

StraightArrow,

Looks like you' ve picked up a stutter here lately :D

RE: Do pivoting limb pockets...
 

I don' t believe captive pivoting limb pockets give peak efficiency, but they do provide for better " tightness of tolerances" vs. having loosened limb bolts in fixed pockets.

I' d be curious to grab some of our high-speed video equipment from here at work and film a fixed limb pocket, 60-70# bow that has been back off to the minimum of 60#' s and see if the limbs ends in the pockets ever " bounce" away from the limb bolt heads during the shot process......

I' ve always been a fan of the pivoting pockets myself. :)

RE: Do pivoting limb pockets...
 

Yeh, I don' t know what is going on. I hit " ok" and I end up with 3 posts, half the time. [:' (]

RE: Do pivoting limb pockets...
 

I' ve found also that if you have a 70 pound bow maxed out and the draw length is perfect for you, when you turn the bow down to 60 you will see about 1/4 inch of draw length increase. This is with standard fulcrum type limb pivots, the pivoting limb pockets may be different depending on the thickness of the pocket:D