Scotty_BoySo he would have to buy Quiver killers for 2 pairs of skis?
Yes, you would need to buy multiple times the amount of inserts you would need for your bindings, and then the hardware to mount one set of bindings.
Personally I buy from Binding Freedom because they're run by SVST and the guy who invented them:
And Grumpis, if this looks like a viable solution then you can check with your ski shop to see if they can do the inserts and whether or not they have the tools. If they can't, then you could do them yourself if you feel capable of drilling and tapping into your ski. If you or your shop don't have the drill and tap, they can be bought off the website I linked up above.