this is just a thought. the other day i noticed in my shop that i had forgotten about the mulching plugs for the 2 prolines that i have. I was wondering if any of you with these mowers use the mulch plug. is there really a difference if you do? i have a proline with a b&G 6.5 hp engine and last years proline with the kawi 6.0 hp engine. i guess i have not taken the attachments because it is just something else to take with me on the truck that i might lose somewhere.