No! No! Don't use the wax paste. Use the MacMethod and no polish. MacMethod can be found here:
As well as other places in this thread. Listen to Uncle Mac on this and you will be thankful.
I tend to agree with Burton. I understand the "Wax For Protection" argument, but I reject it, since shell is said to contain a good amount of natural wax to begin with. Your shoes though, do with them as you please. My dad polishes the heck out of his unlined LHS, and I let him do it since they are his shoes and not mine. Mine have never been polished, and I think that they look way better.