I've seen several posts on doing your own winterization, however, this is our first PWC and neither of us is very "handy", so we will most likely be taking our Spark to the dealer ship for winterization. BUT, I don't want them to run up a crazy bill, doing unnecessary work. So, my question is... what will be necessary for the dealership to do? And what might they try and "con" us into that we can do without? We only have about 13 hours on our Spark. My son ended up having surgery so we didn't get out as much as we had planned. So, I want to make sure it's ready to go for next year! Thanks for the input!