If you have a dirty cork handle and pits in them this is what I do. Wash the cork handles with some dawn , warm water and a mild scrubbing sponge. Clean it real good, and then take the sponge and dip it in bleach and bleach your cork. This should make it look new again. Now wait a day for it to dry. Once dry, take some Elmers (Golden Oak) wood putty and slather it in all the cork pits along with the entire rod handle. Let dry several days, and then lightly sand all the putty off. Once this is done your cork handle will look new again. Once done seal the cork with U-40 cork sealer. That's it.
"Practice, practice and more practice, and if you think you're good practice some more". circa 2006, Cadman