I've been wearing Asics Gel Cumulus for 13 years now. I haven't had any problems and I know it may sound crazy to switch, but my speed has been improving and I would like to try something lighter. I am a light-weight runner (5'4"/115 lbs.) and need a neutral shoe that's good for knocking out some mileage. (Training for a marathon in October.) Thanks in advance for any suggestions!