I'm just finishing up an OS that looked kinda similar to that stave. Same situation, reflexed one way, tension on the other side. I went with the reflex as the bows back.
I'd say I haven't noticed any ill effects. Its amazing wood. I did goof up and pop a small chrysle near the fade. It was because my outer 1/3 was too stiff. Its all corrected now, but man, what a rookie mistake!
This stave I worked on was a total boogy-man. Uneven reflex, on either limb, uneven backset on the handle, moderate propseral twist and it needed string alignment. For all that she still came out a sweet bow pulling around 52 at 28. Like I said, thats some tough wood.
But... based on some deflexed yew I've worked with, I'd say you'd also be in good shape going with the deflex side, trusting in the tension wood, and dropping a sweet little D/R profile into that bad boy. That'd be something I think you'd do. And it'd turn out sweet.
Gabe