I got a 1/10 E Revo a few weeks ago. Replaced a few things. I hated the short run time so I went to my local shop and we switched to the lipo batteries. 7.4v 2S 5000mah 35C. Ran it one night at the track, ran awesome. Next day I went to run again and noticed it didn't seem as fast, then it just stopped. I fried both Titan monster 550 motors. I had another set, put them in and the same problem. I'm being told it could be my gearing. I'm running 19t/68, I've been told that I should be running the stock 17t. What's your thoughts? Not to sure if I want to go brushless just yet, For now I just want a good running truck at the track.. Someone please help, I'm going back to the shop tomorrow and I want to make everything right. They're gonna replace my motors at no charge but while I'm there, I'd like to get everything fixed the right way.