Up here winter is twice as long as summer and I have a supplier that gives me a gallon of synthetic for $30 so I run Snowmobile oil in all my two strokes.
I used to have a line on getting a cheap gallon of the BRP XPS out of a bulk 55 gallon drum to run in my 97 GTX 787. The previous owner ran the BRP Sea-Doo XPS only and I swapped over to the snow version of the XPS without draining the tank or having any problems.