Gene hit the nail on the head, that long overhang causes big time handling problems. Then you add a toad and it is like playing crack the whip! My first Class A was horrible to drive!!
If you own a motor home or camper, or plan to purchase one, your safety can depend on how the wheels of your unit are placed. If their location is not correct, your vehicle will not handle well and will be more prone to accidents because the risks of roll overs will be greatly increased.
Some people assume that the more expensive a coach is, the safer it is, but even many luxury motor homes have unsafe wheel base ratios. The only way to know is to learn the formulas and use the right techniques for measuring before you ever make a purchase.
http://hubpages.com/travel/Why-RV-Wheel-Base-Ratio-Is-Important