I gotta recommend any chips with Jody Tipton's(DP-Tuner) tuning on them. I have a 4-position chip that is flat out awesome. I am going to have him replace the 40hp setting with his super economy setting. I tow 5k with the 100hp setting and it rocks-egt's are great. In fact, my egt's are better with the chip on the highest setting than with my old programmer. Shifts are great and TC lockup is where it needs to be-and it stays locked(PMT1).
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That being said-Bob will have somebody really good doing the tuning for his chips. He only does things first class. He is excellent to work with as well. I wouldn't hesitate to buy anything from him. I don't think you can go wrong with either of these chips I mentioned. I would definitely recommend the custom tuners like Jody or DI rather than the more generic tuning from some of the bigger companies.