Just what exactally is the differance btw. the two, is there beter baffels under the ultracut? I notice that the ultracut is used on all of the z riders except the lazer hp. Why is this, and is this an advantage or a hinderance to the hp model? The reason for the inquiry is that the hp is the size I really need to stick to (compact and lighter) to fit my application. I also see the ultracut deck pictured (underside) in the brocure, but have never seen the trivantage underside, and wondered if they were the same. Thank you for your help!