I have a tc167 for years now. Previously had the 101 11 ft triton clam shell
167 Is a slightly tougher pull, use more gas and side winds are felt more so than the 101.
Drop down door is the best thing going.
No worries about snow weighing down a clam shell.
Loading is much easier imo. Lots of room for gear in a 167. You can load 3 sleds if needed, very tight and tricky but a buddy does it all the time.
Single axle works fine for me, suggest brakes as I warped my rotors quick on my Ford 150.
Personally I'd go with the tc167.
Caveat....watch the front axle bolts!!!!
Check also the spacer between frame and axle, mine disintegrated.
3 riding buddies had front bolts break away...we trailer a lot.