Sorry Cooter. Wasn't on very much in the last few days and didn't see your post.
This is what I do to start off with, I know it's a bit late but what else is new
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With the clamped in my vise I grab the tips and bend them by hand to work the wood and see how they are bending. Then still using my vise I use my long string and T stick like this until I get it up to brace height.
Looks like you have already jumped that hurdle though.
I then use this device, that I built especially for highly reflexed bows, to brace the bow.
Once the bow is braced it gets a lot easier.