Reducing weight on TD limbs???

[EASTERNARCHER]

I've been gifted a TD bow with prototype Browning limbs at 60#@28"....I have been shooting a friends 62# Widow and didn't think this would present a problem. But....I find that this bow  is a real brute to draw. Maybe they're a bit more than 60#, I don't know...haven't scaled them properly yet.
I was gonna build a new riser anyhow cuz the current one has developed a crack thru the arrow shelf.

So I wonder how can I reduce the draw on these limbs to 53-55#'s. Sand from the sides or from the glass back? or the belly also???Any suggestions? One more thing...the tip shoulders are so narrow on these limbs taht I'm nervous that the string will slide off during shooting. I have shot it, but this is always on my mind. They look like they have a phenolic overlay, so maybe I can cut the groves a bit deeper?

Thanks

[Orion]

Sand from the sides and roll over the edges.  It's very risky sanding the back or the belly.  Almost impossible to keep everything even.

[kennym]

What Orion said!! You might also think about changing the limb pocket angle to bring the tips back towards the belly side a bit. That is if they aren't too far back already. You could make a mock riser with different angles and check weight difference.

[EASTERNARCHER]

Originally posted by kennym:
What Orion said!! You might also think about changing the limb pocket angle to bring the tips back towards the belly side a bit. That is if they aren't too far back already. You could make a mock riser with different angles and check weight difference.

Kenny, I've heard that before...shouldn't take much angle change to effect a 5# reduction huh?

[kennym]

Limb design would play a big part,thats why I would do a mock riser,then you don't have a lot of expense or time to see what you can get.You can always take the hardware back out. Let us know what you find out!

[Leon.R]

Not an expert but from what I understand on my bow, the diff between short and long riser is from 3-5# and its all to do with the limb pocket angle, not much from what I understand.
Is that not the easyer option?

[Blackhawk7204]

If the limb angle stays the same you will loose around 1 pound per inch of increased riser length. I have reduced the draw weight of several recurves by sanding material off the sides of the limbs. Just take equal amounts of of both sides and both limbs. Go slow and keep checking that the limbs stay straight. If the limb tip wants to get off center just take a very small amount off the side opposite of the direction of the tip.