I have the latest Revo 3.3, and I love this thing! The only problem I have had with this thing is keeping a throttle servo on it. I was thinking of puting a traxxas 2075 waterproof one on there for about 45 dollars, but was just wondering if you guys know of a better one for about the same amount of money or just get with the traxxas 2075. The first throttle servo that was on there was a traxxas 2055,it went out and I stole the steering servo off my t-maxx a jr Z590r and it went out i stole the last servo i have off my gs racing buggy and thats what i'am riding on. so any suggestions will help! oh and another thing how long dose the trx 3.3 usually last before rebuild and should I replace the connecting rod? I have ran 2 1/4 gallons threw it and are having no problems! Blue Thunder love the stuff! oh one more thing I got the spring header for my revo 3.3 and it gets in the way of the pull starter, so if you have a revo with bump start the traxxas spring header will work just fine.