I have no experience with the 260, but I have a full season with my MOD. The MOD is far superior to a chute blocker in how it performs when trying to mulch. I made mine even better by going to the OEM wavy mulcher blades and making some new baffles to go underneath to replace the two adjustable baffles that come stock on the machine underneath between each blade at the rear side. Now each blade is completely its own compartment when the MOD is closed and there's no windrow along the right side blocker plate like you get with a chute blocker, and to a lesser degree with the stock MOD set-up. My set-up makes mulching leaves a lot better and more efficient by not blowing any away from the front of the deck like it did stock, especially with the OEM high lifts. It also mulches grass much better/finer now. It didn't take more than about a half hour to make the new baffle plates to bolt in using the stock bolts and mounting holes.