I know I'm spending too much time on this site when I look at the sole of a shoe and get excited, but this looks really intriguing. I always topy my leather-soled shoes and have contemplated the integrated metal toe tap. I've got two pretty good cobblers here in downtown Pgh but neither has suggested anything like this. I think I'm going to show them this pic and get their thoughts.
A co-worker from Paris has this set up on all his shoes- from what he said its a pretty common treatment there. I've looked into having Bnelson do it for a few of my newish pairs, just haven't gotten around to sending them in.