I have been thinking of doing this for a while now. I asked over on CPn Help a while back, and from what I read, it seemed an option as a swap with the doxy.
The reason I guess is to cover my bases. Mino is getting press regarding its benefits for MS. I saw this as a way to stick to the abx's and possibly gain some benefit from whatever mino has to offer as well.
As for the ataxia, all i read implied it was reversible with B6 supplimentation.
My doctor wrote a short term script for the mino, so we could check to ensure i didnt go downhill or anything. Although my walking has gone downhill a little in the last few weeks, its nothing i can attribute directly to the mino. The flagyl pulse I think had more of a detrimental effect (at this stage) on my walking.
I think my doctor may also be more comfortable with prescribing mino long term, as i think he does so for acne already. I am also soon to see my neuro, and I think he would be more positive towards mino as well; and therefore not pressure my gp to stop the abx scripts. I have yet to speak to him about abx's. It will be an interesting appointment I think with all the treatments i have tried since i last saw him. It will also be a chance to get an MRI scheduled as well.