Started with a BX23 TLB, had a 60"mmm the went to a B3200 TLB but added a 72" RFM. Now I cut 3 acres with a Grand L3540 with same Woods 72" RFM. All cut the lawn good, but I like the RFM the best because it's easy on and easy off. Now the difference in size and weight do come into play if the lawns wet. Although with the Grand L's you would think it would tear up the lawn, not so because with the R4's being around 20" wide it does not. If I do want and need to cut when lawns quite wet I use the garden tractors 48" mmm. Hope this helps?
DevilDog