Hauling round bales from last cut.
I have the same setup you do. I took my rear mount round bale spear and welded a 2-5/16" ball on top to tote my tri-axle Kaufman gooseneck around. I've loaded 20 4x5 rounds on and went down the road (carefully). I run a double spear in the front and the single in the back, I usually use the 105 for that but I have used the M9000 too. Don't do that much anymore. I have one hay customer and he buys all the rounds I can run (minus 20 for my stock) and he drops his trailers in the field, I load them, he straps them down and off he goes. Pays me at years end. for the rounds, in cash. Took e a few years to develop that relationship. I'm a one man 2 tractor forage grower. NH Discbine, Pequa rotary rake, Pequa tedder and a NH roll belt twine / net bailer. and a NH 575 square baler with kicker that stays in the barn now. Lets not forget the 150 gallon sprayer and the rotary granular fertilizer spreader. Nothing better than haying in an air conditioned cab with the CD blasting out some good Country Western music. When I started haying, I did it with an open station. I learned real quick that the climate controlled cabs made for a much better workday.
My real lesson in open versus closed station came when bailing corn stalks under contract. I was as black as the dirt when I got done. Made up my mind right then and there that I'd be in a cab tractor so I sold the OS tractor and bought my 2 Kubby's.
2 years ago I baled wheat straw in small squares for the county road comission. I baled 4500 squares in one day with the 575, only stopping to fill the twine box. (6 balls). All on the ground (had the kicker off). Nice straight 1/2 mile rows. Glad I didn't have to pick them up. Best money day I ever had. After fuel, twine and expenses, I cleared over 1500 bucks.
Started at sunrise and finished just after sundown.
Right now, hay around here is hitting 10 bucks a small square but I don't miss the handling. Rounds are better and less work, but less money too.