[NY12020]

The advantage of lengthening the bow's power stroke by shortening brace height outweighs the advantage of a shorter arrow (overdraw) and a shorter power stroke.
With the short brace heights these days there's really not enough room for much of an overdraw, but most of todays arrow rests support the arrow behind the riser anyway so they really function like a short overdraw.

 

[NY12020]

Something to note about the shorter brace heights on todays bows (just clarifying based on a few comments above)...they do not make your arrow any shorter, they move the string closer to the riser which lengthens power stroke. In simpler terms they don't bring the arrow rest closer...they move the string farther away.

 

[NY12020]

because reflexed risers which drastically shortened brace height also made 5gr/lb more attainable for many, thereby reducing the need/benefit for "overdraws"

Again...confused. An archer with a 32" draw shooting a 7" brace height bow will have the same arrow length as a 32" draw 5" brace height bow. The relationship between grip and rest don't change...the string gets farther from the shooter.

But agree about the newer style rest...a 5" overdraw and a behind the riser arrow rest (1.0"-1.5") are 2 different animals and the function of overdraws like in these pics was strictly reducing arrow weight.

 

[NY12020]

Not confused at all, the farther the arrow rest is behind the grip, the shorter the arrow can be at any given draw length. I'm not saying that draw length changes with brace, I'm saying that the power stroke does. If you reduce brace by 4", then you increase the power stroke by 4" which more than makes up for 4" in arrow length, thus no need for a 4" overdraw.

Sorry nestly I think its just the way it was worded. About brace height helping attain 5 gr/lb... which it cant. I think what you meant is the shorter brace height eliminates the need to have a shorter arrow and I agree completely.

 

[NY12020]

Negative.

Draw is the same whether the riser is reflexed or deflexed.
Draw is the same whether the brace is 5" or 10"

Reflex generally means lower brace height (all else being equal) which add to the power stroke

Exactly my thought...

 

[NY12020]

Deleted double post

 

[NY12020]

You may have just solved another mystery... this was in the box of parts too

That rest looks sorta like a Golden Key Futura Huntmaster 2000...or maybe a homemade conversion from a TM hunter as the rod has a hole for the 2nd prong.