I'm just using IK for the feet at this moment. I don't think that having no transitions is a bad idea, but maybe not the best solution for our robot, which is not supposed to perform fast actions, it has to look heavy and a bit clumsy ^_^
On the other hand, I'm using Spine's runtime mixing and it seems kinda simple, just pick the 2 animations to mix and establish the mixing time, I don't see how could I be doing this wrong, but who knows I'm still a Spine noob.
Let's see if someone has any ideas on rotation lock, if that exists in Spine at all π