Macdon a30s..

[grassfarmer]

Amazes me how mowers have progressed over my time. Started cutting with 5'6" 3point hitch disc mowers in Scotland as they were big enough for the field size/steepness/rock population. I had a 9' disc mower there laterally that I thought could really eat up the acres.
Had a custom silage crew here last week with a MF triple disc mower conditioner set up - a 9' on front linkage with a 10' on either side. He cut 140 acres in under 7 hours! Getting that kind of workrate from a 180hp tractor is so many times more efficient than what we used to run with 70hp tractors. Land better suited to it here with bigger fields but lots of stones here too which we have to keep rolled.

[greybeard]

I consider the the discbine's biggest advantage is the dirt goes thru into the swath instead of laying on the knife causing the crimper to plug.
Don't miss those days of unplugging that crimper with the mosquitoes crawling around in the sweat on your back.
I run a 14' with a 85 hp 6400 JD.
Expect to cut about 60 acres/day every day.
Slower speed gives you a better chance with hazards like rocks and mole hills.