if you can manage to not damage the holes at all, they can be reused (little bit of epoxy and steel wool shavings in the holes to reinforce), you could also heli coil all the holes (safest route) when remounting
Skiing needs more dumpsters - ']['echnine
"Do you know who the fuck I am?" - Scott
a general rule of thumb is that a ski can be mounted three times. That being said, why waist two of your mounts if you don't need to. If it is possible, you should keep the bindings on. In the long run, if you need or want to remount them you will be glad that you still can.
What's the difference between a snowboard and a vacuum?
You could take the bindings off, and then just order some Binding Freedom inserts. When you go to put the bindings back on, you just widen the original holes, put the inserts in, and then you can take your bindings on and off as you need. I mean, it's a bit more complicated than that, you need some epoxy and stuff, but there is a video on the site that explains it better.
IF you're reeeeal careful you shouldn't damage any of the threads removing the screws. Just make sure when you put the binding back on that you start the screw at the same place. You can find this by very slowly turning the screw counter-clockwise sitting on the hole and it will slightly drop in when the threads line up. Also make sure you use epoxy or a good glue when putting the screws back in.