Bevan, that's exactly what I do. I heat the bow with the belly up (heating only the belly and sides) until I just about can't hold my finger against the back (the side that's down). Then I put the big wood clamp on and see if it will twist where I want. If it doesn't, I heat some more. If it does, I tighten the clamp up and hang the bucket with rocks in it on the threaded rod furthest out. By adjusting where it is and how the rocks are hung on it you can make subtle changes in the bend. I normally do not have any spring back doing it this way so I align the limb exactly as I want it and let it cool with the weight on it.
I've seen PatB bend limbs sideways against a form in his build-along, but so far I haven't had much luck doing that. It takes a lot of force to bend the wood against the width of the limb. Maybe I just haven't gotten it hot enough? Gary came over the other day and heated his handle up and bent his limbs about 3" at each tip. I was amazed, but it appeared he got his wood really hot from the look of it. I've only done that successfully on one other bow. That's a long way to say I'm not sure.
Darcy, if I didn't love the shape of that recurve I would do just that. Maybe I still should.
George