We have pulled a 4 row 7200 with my Branson 8050.
She never even breathed hard doing so. However, we plant at a very low speed because of all the rocks here.
About 2-3 mph. We find it much more productive to go slow and keep going rather then go faster and
spend a bunch of time doing repairs. Much nicer to sit in the AC then get out and get greasy and dirty fixing broken chains
and coulter bearings. Get enough exercise getting out to fill the seed hoppers and dry fertilizer hoppers.
It shouldn't pull any harder then your 9 row grain drill.