I think most of the North American manufacturers made soft core and round core balers, so it would be good to ask about whichever model you are looking at. The soft core balers make the bales with what looks like a clover leaf pattern in the middle, they start with a loose roll and then squash it down. Some people in our area really like them because they say you can bale with a bit higher moisture content with those, the centers allow for some air circulation. I'm not sure I completely buy that but that was the logic. Electric tie balers use some sensors and solenoid valves to redirect the hydraulic flow from the tail gate circuit to the twine arm, so a single hydraulic remote does both jobs.