I'd be curious to see the rest of your sole. Looks to me like you heel strike very hard, which is what's causing the excessive wear on the back portion of the shoe. That excessive wear is a sign of energy being lost in every step. You might benefit from paying attention to how your foot is striking the ground, making sure you're not "braking" with your foot strike, and maybe working on landing closer to the midfoot, rather than the heel.
BTW - How is the achilles feeling?
The Logic of Long Distance
Tony, make sure you're getting a motion control shoe. Sounds like you have a lot of severe pronation going on there! I'd go by Team Nashville if I were you and make sure I get fitted properly for a good shoe. Plus, support your local running community and don't order online! Sure it may cost a little more, but those guys donate a lot of time, energy, and products to races, and runs. You'll get it back!
Yeah I agree w/you on supporting the local running stores. When I first started running I went to a Fleetfeet in Nashville and got fitted w/a shoe to correct pronation - Saucony Trigon Guide 4, went through 2 pair of those, then went to the Murf Fleetfeet, got fitted again, but this time w/a new model of Saucony which didn't work well for me. I found the ones that worked on the internet and have been trying to stay with them. I know eventually I'll have to get fitted again w/ the latest, greatest, but for now, the internet is the only place I can find the ones that work for me.
The right shoe isn't on the internet, because you aren't an expert.
Ha, we must have a little communication error here. Fleet Feet is a national chain. Sure the locations are franchised out, but they are total sell-outs. They also don't know crap about fitting shoes. Go to Team Nashville, or Athlete's house. They'll take good care of you, and get you in the right shoe. The right show isn't on the internet, because you aren't an expert. I NEVER order from the internet and I've been running for the last 15 years. I always want my pro of choice (Terry Coker @ Team Nashville) to fit me to the best shoe.
*Sits back and waits for my commission to start rolling in*