I run a Kuhn 52" forward tine tiller behind my B2400. For me, the reverse tine tillers are the way to go if you are buying a walk behind because they won't beat you to death to the same extent. If you are putting it behind a tractor then a forward tine tiller isn't going to throw or drag you around. It'll handle rocks better and to be honest, I've never seen that much difference in the so called quality of the "seed bed preperation" between the two, at least not on my ground. I'd get the forward tine tiller and save a few bucks.
I put the
PTO lever all the way down into the float position and let the skids on the tiller control the depth of the tines.