I was wondering of anyone could answer this question for me. I have a just recently bought a new (but 2009) model RXP and a RXT (also 2009 model). So far I have only had the RXP in the water and still running it in. I have taken it up to full throttle a few times and it seems that just a bit over 6,000 RPM is the limit it will go. Someone told me that the engine management system restricts the maximum RPM until it has 10 hours on it then I should expect 8,000 RPM and was wondering if this is true. I have 7 hours on it now.