Great, point. I'll add that to the OP.
FWIW, Isaiah at FRP tells me that if I ever tune my 97, I'll need to use SCT, not HP. I may call him back to get clarification on that.
You will still need software for data logging and can use the HPt software. There are others you can use also.
FRP doesn't sell the SCT X3 tuner anymore but still writes tunes for them. I don't know if SCT makes the X3 tuner anymore either. I'd check and if they don't start looking for a used one.