Wow this post is all over the place.
From my research, the regular length cabin is the smaller of the two. Basically ends right at the sleeper benches. My goal is to have as much cockpit room as possible for fishing, but be able to retreat to an enclosed heated space if the weather is crap. Also, I'm planning for 5-10 years down the road when I hope to be boat camping with the fam, and having a hard top that not only closes securely at night, but I can also put a small raft on top for shore excursions and the like.
And nice handle luvs2cuddle. Classy.