While on my recent maiden voyage, I noticed that my transmission would surge after downshift and would stop after up-shift. I searched for the potential issue and found this article completely describing my issue. I took it to Ford and they confirmed this was in fact my issue. I will pick up my 31FS Saturday and confirm the fix but Ford assured me it was fixed. A key note to add is that the problem is more noticeable when the camper is loaded verses unloaded. Not sure if this has already been posted. If so, I apologize in advance.