All you had to do was put the ash pan under the charcoal grate and catch 100% of the ashes. Super easy clean up too. What's nice about the OT system is that you don't have to open three drafts, but only one and for shut down as well. You can also achieve higher temps because the openings are bigger so there is less baffling. The top one is usually a little larger as well on the OTS. Having said that, I still like the three wheelers, just not better than the OT.