For an NA car, a street tune and a track tune would be about it. If nitrous was added, one might have 2 tunes for different shot sizes.

I honestly thought that the xcal2 only had one tune at any given time. How do you switch tunes with it?

2005 Ford F150 SuperCab FX4 1964 Chevrolet Impala SS 1998 CSVT: 354HP/328TQ @ 10 psi, now gone