Hello everyone! Ive had a great year with my new EPA Hearthstone EQ, 8in insulated liner. I did the end of season brushout and WOW! Nothing but dust. Started burning new stove early Feb. 3/4 cord burned. Before I got the stove I ordered a 7" and 8" brush So I knew I could get the brush up the 33 ft. chimney. Should I buy a 3rd brush (poly) ? My shed could poke an eye out, I still have two 12" brushes and new 7 and 8 in brushes hanging. Should I add one more to my collection? P.S. Thanks to all the teachers who helped me make some very good decisions.