I can understand the over whelming feeling of a large class A. Fortunately I drove a Crown bus for 7 or 8 years so never thought it was much of a problem. BUT, first time in a 10 speed manual Crown with tandem duals was certainly over whelming. We got 40 hours of training and our commercial B before hauling prisoners. We got trained on LA freeways and backing down into underground garages. Unfortunately I gave up my B a few years ago before buying my new MH. I can take the written but they won't let me take the driving test in a 22,000 pound chassis MH.