While changing straps is quite easy, I'd recommend taping off the lug shrouds first to protect them. If the screwdriver slips from the screw, it is possible to scratch the case on non-ceramic versions. "MAYBE" it is "POSSIBLE" that I learned this the hard way.

As for for the ceramic cases, "pfft!" no prob, you've got it covered!
Oh, also be careful with PVD/DLC coated screws if you have them. Enough said.