And as far as the cargo fly... Those zippers are bomber and are on most of Alpacka's boats now. They do affect overall bulk as it is much more difficult to tightly roll the boat. I have one on my Fjord Explorer and opted to not have one on my Explorer 42. Anyway.
I just signed up to make a quick comment. I have Larry's PR49, and 3 boats from Alpacka; the Explorer 42, the older Fjord Explorer with a deck (along the lines of the mule) and a really lightweight Curiyak (not available anymore). All have their places. The PR49 and the Explorer 42 are gear...