I've been testing the Spartan TCM/310 combination in my job one F450 and all I can say is WOW. Just got another revision in the 310 tune for the TCM last night and it just keeps getting better an better. I can't comment on the improvements that will be seen in the Job 2 and 3 trucks, but this is a must have combination for the Job 1 trucks. This last update in programming not only firmed up the two shifts that were a little softer than I like, but also has added some more power also. The way this truck pulls at WOT just keeps getting stronger and stronger. Just when I thought the 310 tune was at is max in the power dept. Matt keeps finding more. Others maybe able to make power, but I haven't seen anyone even come close in transmission tuning. The adaptive learning time is short and the shifting is spot on. In short, yes it's going to set you back a bit of money, but if you can swing the 310 tune,TCM,Suncoast it's money VERY well spent.