I have been running for a couple of years with New Balance 1226 Stability shoe.

Finally when the last pair had worn out, I replaced it with 1260v2, as this is the current model.

This new model is supposed to be the exact replacement, as I checked it with the company, but the
shoe is actually slightly smaller. 1260v2 is more snug than 1226. Both are identical sizes!
I started getting leg pain within 10 minutes of running!

Otherwise the shoe is nicely built. It is assembled in USA, which is something I really appreciate,
and that is one reason I buy New Balance.

Added: April 20, 2013.

I returned the 1260v2 size D, and purchased size 1260 v2 size 2E to compensate for the narrow toe.
But that was not enough! The mid-section (narrowest part) on 2E shoe is still 3 inch, vs 3.5 on 1226.

Both size D and size 4E have given me injuries, believe it or not! Pain in my lower legs as a result
of jogging with 1226 v2 2E! Nail injury because of the short length of 1226 size D.
Size D was a disaster! And 2E still not good enough fit!

I don't know what was New Balance thinking when they upgrade the shoe model. But in order to shred
some weight, looks like they have actually shrunk the shoe, which means the numbering system is rendered
useless even with the same series/manufacturer! This is ridiculous!

(Update: 2017. To be fair, I think I should give it 2 more stars. The shoe is of good construction quality.)