Hey I didnt read thru this entire thread so I dont know if its been said already, but I asked my parents, who both have programming degrees and they told me that the top number possible in an 8 bit system is 255, not 256. I just tried this in the hack and went 60 miles an hour with no messages and all features availiable so I guess that they are right. I hope this is helpful, since I know I didnt want to have a top speed of around 80MPH
~RossGo