Honda Pilot EX-L and Jayco Jayfeather 19H
After researching this combo for several days and getting wildly differing advice (including from Honda dealers) I just went ahead and bought the 19H. IT IS ABSOLUTELY NECESSARY TO LEVEL THE TRAILER AND PILOT WITH THE EQUALIZER HITCH before towing. Having said all that, our 2012 Pilot EX-l (factory tow package and P-3 electronic brake controller) tows like a dream. Got almost 12mpg on the interstate, obviously much less on hills. No mountains here so I can't speak to that, but I can say that this particular combo works fine for us here.