Man this thing is amazing. I haven't tuned it for performance yet because I've only run two tanks of fuel through it. It is set rich for the first few tanks. These things have no break in time. You just our the gas in. I choked it, pulled once and it tried to fire. Returned the choke to normal, pull one more time, it started. After that I was ripping aronud the property, no break in at all. A tank of fuel lasts almost an hour. All I do when I run it is grab the transmitter, walk outside, take it down off the shelf in the shop, pull twice, and I'm rolling. There are no tools to carry outside, and the fuel doesn't go bad so you can leave it in the tank overnight. I used to think my Savage was very fast, but I ran it yesterday and it seems weak after driving such a big stong machine like the baja. The baja handles and drives MUCH more realistically than the nitros do. I'm going to start a new thread soon of the second part of the build. The first part was a stock build except for the Team Fast Eddy pro-series bearing kit. The new thread will show all of the aftermarket parts that I have been ordering every day since I got the 5b SS running. I'll let you know how it run with the Savage and T-Maxx as well as the T4 once the track is finished and I get my timing equipment.