I installed Zbox on my 04 Malibu R LXI. Updated to single puck as well. It was sent to PP and they did it for me. Same letters and numbers as well as + setting. It can go in RPM mode, practice, jump, trick... all of it. I'm a M4 skier, 28-32-35 into 38. I ski alot of different boats- new Nautique, 1990 MC, 2016 MC, 2014 Centurion, 2015 Malibu. I usually ski my same number of buoys behind whatever it is. Upgrading was easy and (knock on wood), haven't had any issues. It runs great. Any other questions you have let me know. Hope this helps.