I ran the Losi RE10 and the Orion 2013 so far. Both good but I think I like the 2013 overall.Did not realy test runtime yet as I only have about a 1/2 gallon through it but I was running the CRF .28 REV the other day and got 81/2 minutes on that so I think the .24 will be better.I dropped two teeth on the spur gear and did not feel it on the bottom but she picked up a little extra top speed for sure.