I bought another Lazer two weeks ago, and I have a few questions. I have a 99 25 Kohler 60" and now a 2001 25 Kohler 60" Will my mulch kit fit the new mower? I like the better floatation of the larger tires, but has anyone made the comment about the larger caster wheels being slower to turn. In soft ground the extra pull of the larger caster tires turning will cause damage because the rear wheels to slip. Will most parts be interchangable old to new? What major changes were made old vs new? Thanks for making a great product and being here to answer questions.