Chronic Nock High Problem - Tiller Issue?

[ArrowPlane]

Relatively quick question for all the people that know much more about this sort of thing than I do...

I've been doing a lot of restoration work on old Bears, to varying degrees of success.  I've had this problem pop up with two bows now, a '56 Kodiak and a '58 Kodiak Special...  It just does not matter WHERE I put the nocking point on the string, the arrows go nock-high in a big way.  Intuitively, it would seem to me that it has to be a tiller issue, with the top limb being too stiff, returning before the bottom limb when shot, causing the arrow to kick up.

I don't have a tillering board, but checking the brace height at the fades, everything looks as expected, with a about a quarter inch more brace at the top, indicating the bottom limb should be stiffer, as intended.

I do shoot 3-under, but I tried going to split and didn't get any different result.  I've never failed to be able to tune a bow that was tillered for split to 3-under anyway.

Any ideas as to what is causing this to happen?  I tried to be careful about removing as little material from the core wood at the limb edges as possible, but the '58 KS did have some pretty serious damage in the lower limb that I patched and smoothed over with epoxy, could've caused it to lose some stiffnes.  But, like I said, the braced tiller looked right.

Thanks a bunch for the input, I appreciate it.

[Bowjunkie]

The bottom limb is too stiff.

When drawn, the stronger bottom limb pulls the nock point (and arrow) down because it refuses to travel/flex as far as the weaker top limb... and upon release, moves it back in an upward direction, throwing the nock high... and causes the arrow to porpoise up and down.

[LittleBen]

1/4" positive tiller at brace height is alot. You probably want 1/8" or less ... maybe 1/16", or even tiller.

With a very stiff bottom limb I think you need a really high nock position ... but I can't remember for sure.

But as bowjunkie said ... the tiller is your problem I think.

[Art B]

I would start at the beginning. First, balance the bow on your finger, and give us an idea how far up the arrow pass is. I've seen Bear bows balance out at the arrow pass itself with no way of ever gripping them properly.

Perhaps a change in the way you're gripping  will help...........Art

[talkingcabbage]

X2 what Art said. I would even consider lowering the arrow shelf a bit depending on where it balanced. And def take some of that stiffness out of the lower limb.

[onemississipp]

What kind of rest do you have on them, could be that simple.