I am hoping Santa brings me a nice new pair of wader boots for Christmas, but I am not sure which pair to ask for. I just saw a new pair by Korkers called "Wetlands" - $79 - that have removable soles so they can be converted from lug to flet to boat sole to studded felt and to studded rubber-which are an xtra $30 (no more straping on korkers for the rock piles). Which soles do most of you guys use in different conditions? Does felt have a use in saltwater? I may also ask for Orvis Clearwater Endura Breathable stockingfoot waders -$129. Any thoughts?