Sign [Q] Optimized Dalvik

OK, with a soak test coming, I have a few questions:

-Is optimized dalvik compatible with our RAZR HDs/HD maxxes?

-Is it worth it? Any of you guru's using it/recommending it?

-Would it interfere with any ota?

-Electrons: wave or particle?

That's all, unless an answer triggers another question. Oh, no ART talk, loving the idea behind it, waiting for stability, and I am an xposed user.