Well, I got it done and it shoots really well! This is a 52" NTN, unbacked Red Oak board bow pulling 30# @ 24" that I built for a friend's 12 yo son in Washington. It took a few attempts, but I finally figured out that directly boiling the limbs for 45 minutes softened them enough to shape them for the recurve. The black area near the handles are where I toasted the back slightly while it was clamped in reflex. It started with about 3" of reflex after the toasting, but after tillering it came out about even and has held there.
Overall I'm pretty pleased. I hope the kiddo likes it!
And here it is freshly unstrung -