Congrats on a very nice boat.
Personally, I would spend a weekend with manual and familiarize myself with all systems. I would then get used to the feel while close to the dock before venturing offshore. I went through this process with Megabytes 1 and 2 (272 and 300). I also learned, setup, and customized all the electronics. They were reasonably close from the installer so step 1 and step 3 are the priorities (in that order).