Ok, so I was running in the Kinvara and the Kinvara2. It's been great and i've had no injury, and I have much more efficient form. Unfortunately, I tore through the shoes in like a month and a half. The tread was gone, and the mesh was ripping. I do around 50 or 60 miles a week. I can't afford to keep on buying shoes that often. So my question is... Is there a shoe similar to the Kinvara (light weight and minimal) that are a little more durable.