Using the pad is fine. Actually I like them better as (when installed and burned-in properly) they're a do-once solution. Greases except perhaps for the expensive Shin Etsu stuff should be redone at least annually (more often if your computer goes thru more than one heat-cool cycle a day). The ATF denizens don't leave things alone long enough to experience this drawback of the greases

.
. Actually lighter fluid (naphtha) or full-strength Simple Green works better than absolute (90% or higher) alcohol.
1- scrape most of pad off with a plastic tool (plastic knife from Mickey D's works great!) to prevent scratching HS.
2 - clean the rest off with one of the solvents listed above.
3- rinse with ordinary rubbing alcohol (70% minimum) with NO Additives!
4- wipe dry with lint-free, no scratch material. Coffee filter works great.
5- Ready for AS...
.bh.