Tillering Gizmo

[Jon Lipovac]

Does anyone here use or have experience using one of these tillering gizmos on fiberglass backed longbows and recurves to really fine tune them? Most of my bows seem to be pretty good but some have more handshock and a little more noise than others, especially when I approach sub 10gpp. I would just like to find the most effecient method possible to get them as perfect as I can.

[Mad Max]

Used mostly for all wood bows.
You can mark a line on the side of each limb every 4" or so and measure to the string.

 

[Longcruise]

I think working on limb timing as described by Roy is a good approach.  Not saying anything either way regarding the gizmo as I've never used one.

[Jon Lipovac]

Thanks guys.
Limb timing is really what I am looking to accomplish. Just didn't know if this tool would help the process as far as what part the stiffer limb to pay attention to.

Max, I assume you are taking all these measurements at brace?

[Mad Max]

Yes

[Buemaker]

I do it at brace, 18-20 inch draw and sometimes at full draw.
I also place the bow on a long piece of paper and trace the limbs with a pencil, then flip the bow over and trace again with a pencil to see how the lines correspond to each other. With a glass bow there is of course not that much you can adjust opposite what you can do with an all wood bow.