Here is another perspective stolen from www.tmcowners.com
After reading, I would suggest test driving a boat with MC cruise and test driving the same boat/motor with PP. Good luck and let us know what you decide......(Ly6 is the new 400 hp motor from Indmar)
Perfect Pass and the LY6
After breaking in the engine on the new boat and getting a new tranny at 9 hrs I was finally able to get some skiing in today. Today was also the first time I used the Perfect Pass on the new boat. I really don't like the way the new Drive By Wire (DBW) boats drive with Perfect Pass. My 2003 197 had the servo style Perfect Pass and I thought it drove much better than my 2007.
There are two things that I notice compared to my 2003. First when accelerating up to your set speed when the PP engages the boat thinks it is going to over shoot the speed and then drops the rpms by about 500-700. Then it realizes it is too slow and surges up to the set speed. My 2003 never did that. It usually over shot the speed and then slowly came back. It actually feels like the boat is dying and then all of a sudden comes back to life.
The second thing I noticed was that the RPMs are surging and dropping constantly when the PP is engaged. It holds speed fine but is pretty annoying when you are in the boat. Even though the RPMs are only jumping anywhere from 10-50 RPMs per the PP gauge you can definetly feel it. You feel like a bobble head doll when you are driving as your head is jerking back and forth with the RPM changes.
I was able to dial it in a little bit to improve the surging and RPM drop by messing with the calibrations, but it was still rather noticeable. I don't feel it when I am skiing at this point, that is except for the initial engagement when it feels like the boat is going to stop.
On my 2003 I liked to use the Wakeboard Pro version and the wakeboard mode as it made it simple for the other people that are driving. I initially setup the 2007 the same and the boat felt like it would have been awful to be behind. We tried everything today and it was still present even if we were using the Digital Pro version, in slalom mode and in wakeboard mode. The surging was still present no matter if there was a person skiing or not. I finally gave up and decided to ski with it acting like that, but it sure doesn't feel right.
What are other peoples experiences with the DBW PP? Do you have the same undershoot problem when PP engages? Do you notice the same surging? Does anyone have a 197 with the LY6 in it? If you do what are you PP settings?
(Message edited by lionel on June 11, 2007)