Any advice on a lightweight trainer that is going to last longer than 200-300 miles. I use Cumulus to train in and though I like them, looking for something a bit lower to the ground that is less clunky and lighter. I currently have been using Nike Zoom Elite 2 for faster/shorter stuff, but the tread wears down so quick. I am a bigger guy (6-7, 190), but don't having an issues with leg/feet and have high arches. Thanks...