Mak,
Yep, the trailer handles great. The shop I took it to does suspensions, brakes, stuff like that on big trucks, motorhomes, etc. I had a Superlift 4" suspension lift installed on my Chev at this shop a few years back and was really happy with the service.
I never liked the trailer not being level with the truck, but what got me in there in the first place was the big recall on the Montana 5th wheels' suspension. The guy that did the work for me had been fixing the Montana's for the factory and while talking with him about my trailer height, he said it was an easy fix and much stronger than factory. Cost me just at $450. Took about 6 hrs. Worth every penny and it looks good on the truck now.
Over time, leaving the trailer angled can weaken the rear axle and spring assembly to the point in a turn, esp trying to park it in a tight place, can snap the welds loose. Then your stuck.
So, go for it. Let me know what how it goes.
Jen