Jack knifing a trailer while backing isn't a good thing to do...a lot of damage can occurr when you go just a little too far (crunch!)
Not to mention the LP tank, cooler, or whatever that gets installed after all the careful planning...
However, making the hitch long enough to jack knife, at least in my case was important for going forward.
When hooked to the old car, which turns a pretty tight radius, I can do a U turn on a two lane highway, without backing up, finding a driveway, etc.
Gotta be prepared for those garage sales, and old trailers in back yards!

Waiting for "someday" will leave you on your deathbed wondering why you didn't just rearrange your priorities and enjoy the time you had, instead of waiting for a "better" time to come along...