Backing any trailer where you can't see it around the camper....is difficult. With a stinger extension, tail swing comes into play also. My hitch attaches ~7' behind my axle.
I've never used the front hitch on my truck, but now that I have a camper on it...I'd be tempted to. I'd be more worried about trying to back out/up a boat ramp though...than pulling straight forward out. Especially with the loaded trailer/wet boats.
As for backing down....the last boat I had required that I wet my wheels and nearly submerge my exhaust to float the boat at most ramps. With a TC on, that would be a no-go. I'm not willing to dip my TC in salt water. Another good reason to try out the front hitch or seriously extend the tongue on the trailer.
