not much help, beyound having a walk behind tiller, it is nice to have forward spinning tines, so the machine kinda pulls itself along vs having to actuall push it along.
if you had a walk behind tiller that was self propelled. then a reverse spinning tines, can help lift dirt that was just cut up into the air, and allow the dirt and chunks and clods go through the tines perhaps a little longer before falling back down and coming out the back of the machine.
or am i getting the direction of rotation mixed up?
forward spin, the blades cut directly into new ground spin downwards, and dirt goes out the back.
reverse spin, the blades goes through dirt already cut, then down into the ground, then up in front, and then brings dirt up and then back down, on the back side of the tiller and the dirt goes out rear end.
*looks confused* suggest waiting for other replies.
you noted 16HP, are you looking at gas engine on the tiller, or are you looking at connecting tiller to a PTO shaft on rear end of tractor? if hooking to 3pt hitch and running off of PTO. how many HP (horse power) does the PTO have? (there is difference between tractor engine HP, and HP for the PTO)
also if hooking up to tractor, how wide is the rear end of tractor, and will tiller/s looking at cover rear width of tires?