Anyone using a programmable MSD box?

I have a MSD-6 ignition set up with a MSD Pro billet distributor. I have absolutely no complaints and it works very well. I am very interested in the adjustability of a programmable MSD set up. Would it be worth my while? I am more interested in the timing adjustments than anything. I change from race gas to 93 octane based on availability and change the timing manually when I switch. Is it adjustable with a laptop, or am I reading things wrong? Any info would be a big help.