I test drove an enclosed 6x12 tandem axle trailer. Had it up at highway speeds with a decent oncoming/side wind.
I found that I had to keep the transmission in 4 to prevent occasional hunting - I have no issues with that.
I'm thinking of buying the 7x14 with a wedge nose and extra 6" interior height. Dry weight is 2000lb - more specifications here (page two, left-most column):
They have a 6x14 unit too, but the extra width would be nice for working on an ATV inside, if required. The 7x14 could be a bit more of a drain on the wallet too (for gas), but you have to pay to play.
Anyone see any issues with that model?
I have a brake controller and am waiting on warmer weather to install my Firestone Ride-Rites and on-board air.