I did exactly as MD described, second scope mounted in another set of QDs that I took as a backup in case my scope crapped out. Also, like RL28 said above, mine came both with Levers and the screw, so you could use either one. I suppose on Safari, the levers might make it a bit easier to get the scope off without the right driver, but you also have the levers sticking out which can catch on brush. However, I never had an issue with that, both in Africa and Alaska. One thing I did learn, though, is that if you buy the fixed Talley's with just the one screw on top of the rings, instead of the type with two screws, you may have trouble keeping the scope in place inside the rings on a heavy kicker. At least my Dad had that trouble on his Sako 75 in .375 H&H.
