I"ve been cutting hay with my 165 drum mower for I think 8" years. It has been great and I still love it. What a difference over a sickle bar (I used one of those for 20 years. I thought 501 sickle mower was fantastic after watching my dad cut 20 acres every year with a cub Farmall. What"s that about a 4.5 foot mower! Well the point is that today I was cutting some real thick tangled stuff that had been pounded with rain a couple weeks ago so it was pretty leaned over also. Had to cut in second gear agonizingly slow. Probably 7 hours to cut just over 4 acres. Have a chancE to buy a Hesston PT 7. How do these old things do in this heavy stuff? The drum works great in the regular grass but a extra cutting width and perhaps speed wouldn"t hurt. Can"t yet afford more horsepower or new machinery so just have to keep upgrading the old stuff with newer old stuff.