reflex/deflex vs reflex.. bowyers?

[brent d.]

I have built about 10 bows or so including a couple of reflex deflex bows. Out of all the bows only two were bows that I would hunt with. SOme ended up light and some broke. Both shooters (hickory backed hickory and the other was hickory backed bulletwood) were reflexed around 3" after gluing.

 My question: What is the design advantage of putting that extra curve in there on a R/D? Handshock? Speed?

 I have a new belly and backing and I was thinking about reflexing the glue-up 3" but also cutting a kerf into the end to install a thin insert and try to recurve the tips a bit. Any idea how this will effect the shooting qualities? And will the cut at the tip be sufficient  with a single pass on a bandsaw?
 
thanks for any help.

[ONE SHOT]

Contact Dean Torges about putting the kerf on the limb tips, Dean is a member here on Trad. Gang. Iam sure He will be more than willing to give you good sound advice He has HELPED Me many times in My Bow making adventures....ONE SHOT...              :D

[Tree man]

Over simplifying a bit---Deflexing off the handle adds smoothness to the feel of the bow and reduces fingerpinch at full draw while making the bow easier to string. Reflex increases preload,which allows more energy storage thus adding arrow speed but can reduce "stability" making the bow harder to shoot as consistently. The Deflex/Reflex profile is merely a compromise trying to pick up  advantages while cancelling some of the disadvantages.... And it works pretty well. A Deflex/reflex will handle like a longer straight limbed bow while shooting faster than  a longer straight limb (assuming it is all done "right").

[brent d.]

Thanks, Tree.
I have a harder time tillering R/D bows. I think that one of my problems is that I need to get it bending more before I even put it up on the tillering tree. I always catch myself trying to tiller out that curve in the middle of the limb.    

I intend to make a thickness sander from my drill press before my next bow so that I may taper the belly some for better bending and hopefully make laminations.