In response to both your questions, the fundamental issue, aside from a little pain on the base of my second toe, is the lack of an efficient toe off. It is difficult to get a good push off from the first toe because it collapses at the last moment before toe off, forcing toe off from the base of the second toe. I guess that's call late stage pronation, and I don't otherwise pronate (or I don't think so, based on the many gait analysis I've had done). The power that most people have at “big” toe off is just not there. I'm experimenting with increasing the mm. height to 3 under the base of the second toe on my orthotics. And, if the prokinetic insert is available – it's about 3. 5 mm I think, then I'll try that too.