I have run my 93 race tune for a while as a daily driver, then I "downgraded" to the 93 performance tune because I was going to stay on it for a while, then go back to the race to feel like I just put on more parts again. Lol.
But, I have actually stuck with the performance tune, because it gets better mileage. Don't know how or why (and no, it has nothing to do with my foot - I measured already at speed on the highway, in cruise control, running both tunes for about 20 miles on different days).
Way back when, when my GT was newer, I had a 93 race tune on a drive to Alabama. I don't understand how/why, but I was seeing 32+ MPG highway (cruise control, at 70+ speeds). I have NEVER been able to get that again....dammit. Lol. I DID have a different chin spoiler, so that could have helped (with the whole "removal of turbulent airflow under the car" thing)...honestly don't know.
Sorry - long story short, you should be safe with the 93 race tune for a daily driver. If you want to, get their "tunes for life" deal, and get another one with the O2's left on - you have to put that in the "notes" section at the bottom.
2009 G.O. GT, Spoiler delete, JLT-style CAI, Bama 93 Oct tune, Quantum Motorsports brake duct cooling kit, SHR quarter-window louvers, MGW short-throw shifter, Steeda UDPs, JLT oil separator, FRPP FR500s mufflers, MSD coil-on-plugs, FRPP 1.5' drop shocks/struts/springs, FRPP sway bars, Michelin Pilot Sport A/S Plus tires, stock 3.31 gears