For the record the GT3B and GT3C are the same boards and firmware inside they just made some cosmetic changes to it for the GT3C. They also changed the power requirements on the GT3C to a proprietary 1s lipo pack where the GT3B used 8aa batts and ate through them like nothing. There a few things that you can do about GT3B to make it better but I would suggest buying the GT3C as allot of the problems with the 3B were addressed. The 3C does or had a power button issue but it is fixed real easy with a micro toggle switch. On both hacking and programming are the same. You have the option of doing it yourself, fairly easy to do if you are slightly mechanically inclined and can solder (basically can ya open it up and solder in 4 pins) Then its all done by discovery board and computer. You can do it yourself with the kit Or you can buy one from here pre hacked. Same place sells the kit for you to do it and on the 3C it was super easy. Welcome to OverkillRC - I believe you can get them off nitrorcx as well as other online sellers including ebay. Here is a link to 171 pages of everything you wanted and lots not wanted on the GT3B. GT3B Hack Question and Answer Thread - RCCrawler I love the thing and I won't feel too bad when Idrop it on a pile of rocks and destroy it as I didn't pay a bagillion dollars for it. On a side note there is a hobbyking model that has the same internals and can also be hacked with the same firmware. the info will be in that thread somewhere.