I currently have a toro proline 21", one of the old 2cycles with the suzuki engine. I might need another in the near future, but the dealer i my larger mowers from doesn't carry toro. He says the exmark 21" is exactly the same mower. i know that they don't make 2 cycles anymore, but, are these two really exactly the same? I love the proline and want another of those but want to give my dealer my business too.