-- Last Updated: Mar-16-13 8:21 PM EST --
Short boats "generally" are tougher to do any
real mileage in versus longer, more efficient, hulls.
Doing 30, 40, 50 miles in a short/wide boat is nothing
like doing the mileage in a long/skinny boat.
Long boats slice thru wave trains and glide a bit,
as shorter boats "bob" about and require correctional strokes.
It all comes down to - right tool for the job.
Only the OP knows where 90% of cockpit time will be spent.
You'll see more scenery on longer trips and efficiency
will play a role in how sore one is the next day.
Cumulative effect after multiple days of paddling.