You can trust the patched tire. I'd put it back on and put the spare back as a spare, if there is that much difference. No point in using that tire up when you can sell it onec your other four are worn out and you are ready to replace with better tires.
If you are not changing tire sizes, you can keep the SRA as a spare for the new tires....just put a tire cover on it so people can't see the difference in tires....LOL!
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New KJ Gear -
Desert Armor Flak2004 Renegade Light Khaki - 4" JBA Lift - Rock Lizard Products: Komodo Dragon Rear Bumper, Prototype Winch-mount Front Bumper, Super Skink Sliders - All J's Super Tranny Skid II - 31" Firestone Destination AT's on Moab wheels - Cobra 75W CB w/ stock Antenna mod
[b]Retired, US Military