Great comment! You got me there!And be stuck always backing a trailer no matter which direction you're headed? This sounds like a special version of hell.
No he was asking about locking the 3 point in place by closing the rate of drop valve, not the position control lever.Absolutely, you can control the height with the position control lever. That part should be no problem. Just insure you have plenty of tounge weight so that the cart doesn't spontaneously dump on you. (that's basically the danger I was referring to above)