Roger - I agree 100% that the application of the new systems was unfair at best and unethical at worst. But, I take issue with your analysis regarding ZO vs. PPSG. The gate issue you refer to is determined by how the boat is set up. 1. PPSG does not necessarily hit the gates faster than ZO.  Depends on the pregate setting that particular boat is using. And, ZO P-101 does come in quicker than previous versions. 2. If you get behind w/ ZO, it is more difficult to make up time. That I grant you. But if the PPSG is not properly set up, it will give you a slow(er) mid  time and hot(ter) second segment. That makes it more difficult to make up time - and most of us need to make up time in the 2nd half of the course. 3.  I would agree that the application of ZO for older boats is a major issue. It has caused me to reassess my current boat situation and look for a 2007-2008 boat w/ZO that I can keep current for years to come. PP has a unique marketing opportunity to release an upgrade that has a similar feel to ZO. I've heard that may be coming and I hope it does.  4. PPSG's various presets make each boat individually programmable (suitable) for the owner and those he pulls around most frequently. This does not translate well to all skiers. As a driver, I must make not only changes regarding N and L, I must lower the crew weight when pulling some light skiers. I've had to do this at all of the tournaments I've driven this year.  So, PPSG does not provide the same pull as PP Classic. It was never intended to. This is the main reason PP Classic was left in the SG upgrade. 5. I agree that having ZO only in boats at Nationals will provide an advantage to those who have experience with it. I'm fortunate that M4 will ski behind Malibu due to the fact I have access to one.  But that doesn't mean that the boat I draw at Nationals will be set up similar to the one I ski behind each week.  I think this, coupled with a convergence of many other issues, will have a downward impact on participation at Nationals. For this, I believe USAWS made a mistake in forcing these changes on us - whether they be ZO or PPSG.