FarmerBob,
I don't have a Landpride brand quick hitch but I do have a couple of the ones TSC sells (same thing but the LP has an adjustable top hook, mine doesn't). I have heard some people on the board refer to problems of this type of hitch not fitting some implements but in the 15 years or so that I used them I have never had a problem. In fact they are just about a life saver especially on cat II and heavy stuff. It makes alot of difference when you can back up, drop and disconnect from one implement, move over and hook up to another and then drive off without leaving the seat (on non pto driven equipment). I tend to change implements a lot (from rotary cutter to boxblade to a plow etc, etc,) over a weekend and with no one around to assist me it was a major hassle and it sure wasn't helping my tender back trying to push/shove these things into alignment 2 or 3 times a day.
So, anyway I now have one for my cat I and II tractors and I even made one myself to fit my cat 0 JD430 so that I can back up to the 3pth yard vacuum, lift it up and go. It's kind of like a FEL, once you have one you want to slap yourself for not doing it sooner. My opinion:Get One, ASAP.