Mechanicaly self leveling loaders are available on Australian, UK, and Europian market Bransons. I don't know if they're available in the US. Dave's Tractors and other US Branson dealers should know the answer to this question.
Branson is coming out with an option of self leveling loaders. All I can tell you. Will be available next year. I for one do not like self leveling,. I feel I don't have control of the loader and I want control of it at all times.
Can you expound on why you don't like them a little more? Seems to me that it would be better under all circumstances. but I could be missing something.
Yes. Mostly it's when your doing heavy bucket work or even light material and your transporting the material a fair distance with the tractor. With a self leveling you cannot curl the bucket any farther back to keep the material from falling out regardless of what your boom height is once your curled back you can't really bounce the bucket to allow the material to settle in better whereas the non level unit you can. Just my opinion.
I can bounce mine with the self-leveling loader. I find the self-leveling loader works best for me when I am loading round bales on trucks or trailers or stacking the bales when unloading.