I think what Revvin is trying to say, is that repairs take much longer to fix than does a rearming. I have to agree. I work on and rebuild WW2 aircraft, not too very long ago, I did a rudder repair on a B-25J that had been "lightly" bumped by a Stearman. The repair involved 5 days, mostly time waiting for the glues to dry on the fabric, but atleast two days to reform and replace the trailing edge. Now assuming that you have a spare available, it takes approximately 45 mins for us to remove a rudder, and thats huffin it. Imagine the same aircraft with a fuel leak, or better yet a Mustang. That involves pulling the Center Section's Stress Panels just to get inside to see the damage. Then the tank straps and assorted plumbing must be removed to make a fix, which usually involves replacing the tank. One other repair I recently did, was repair an aileron and wing that had been "bumped" by a ground vehicle on a T-6 "Texan". That repair involved two weeks of reforming the trailing edge of the wing, repairing the wing ribs, and rebuilding and recovering the aileron. That also necessitated the wing being removed from the A/C and being placed in a jig to be assured it was straight when done.
In my eyes... a repair pad is a bad idea, not considering the time it takes to make a repair. Replane is the better option... perks or not, it is just more realistic.