I don't like this. It makes double SCH play very similarly to SCH + WHM, turning the second SCH into a reactive healer at need --- which doesn't really respect the WHM "niche."

Honestly, rather than buffing double SCH, I'd rather nerf double WHM. Make it so that regens don't stack, and the Medica II HOT doesn't stack, and I think the "balance" issue goes away, and both niches are protected.