I am not aware of any, but I can tell you I use the BadRiver 3PH adaptor and love it. Its like anything else in tractoring, weight distribution and know your limitations. I keep my FEL on for front weight, and always pull from a low position. The BadRiver (and some others) have the chain to keep the hitch from rising up unexpectedly. I have pulled some very heavy loads with my TC-24D on level ground, with no problems as long as I use my head.
The overturning issue is certainly a concern, especially if you pull from a high postion and give the load a lot of leverage on the tractor.
The advantages of the 3PH adaptor style are many, but I especially like being able slide the ball under the trailer coupler and just raise it up to connect, no more jacking the trailer.
Brad