In my own opinion Yamaha is only riding the wave with Cat as long as their agreement allows,who knows what the future holds,keep in mind the snowmobile industry can't rely on the weather to survive spending absorbant amounts of money to accommodate the small number of people buying new machines as I mentioned about the weather,our winters have been quite warm in the past few,they know this,so in correlation to this both companies can survive and profit on what they currently have.It seems as if everyone wants this new jet fighter snowmobile to come out every year,but need to keep in mind with the cost of retooling and all other costs incurred to may not allow them to do so if only a small number of sleds can be sold.Cat supplies the chassis,Yamaha blew their nut on the engine and electronics making both combos a very desirable sled they both can capitalize on.Yes there is always room for improvements and ideas and usually after market companies pick up that slack in due time to accommodate your fix.When you have something good ,you can make it great,otherwise be happy with what you have.