Just like the title says, I am new to Sea-Doo boats and am looking at the 180 Challenger SE. I am not new to jet boats, I have a Yamaha LS2000 and am looking to upgrade to a four-stroke. The 180 Challenger looks to be perfect for me and what I will be using it for. I have a few questions about the boat, however. Will the 215hp engine be enough power? I will be pulling some wakeboarders and tubers. What is the top speed I will be seeing, I know it won't be as fast as my LS2000, but it will be roomier and smoother on the water. If I can be able to expect 42-50 MPH with 4 people on board with the 215hp I would be happy. I have read on here that the superchargers need to be rebuilt every 100 hours, is this true with both the 215 and 255 models, and is there anything that will help make the superchargers have a longer life? Also, has anyone put an aftermarket wakeboard tower on one of these? I am looking at used boats by the way, a new one is a little out of the price range I would like to pay. Is there anything I should look at on these boats that is a cause for concern? Thank you in advance.