My winter ties are smaller than my summer tires

[ballisticmike]

I,m waiting for my custom tunes. On the order form i indicated the OEM tiresize. Since then i mounted up some blizzaks that are 1.3 inches shorter than stock. And next spring i plan to get new summer tires that are about .75" taller than OEM size. So... Is it simple for me to adjust the tiresize in the programmer using the available tables? Or not so simple? My other plan is to ask Corey to send me a third tune with winter tire size, and my other tune with summer size. Thoughts? This my be a good way to simplify the whole thing.

Example-
perf87 (has summer tire size)
perf93 (has same summer tire size),
snowtire87 (identical to perf87 but has winter tire size).