I tend to like it when pax bring a lot of bags..gotta tie them down in the lav, which means no one uses the lav! [emoji16]
As far as differences, I think most of the differences occur between the RK model numbers..some later variations got fuel heaters, some had remote oil checks instead of having to pull the dipstick before flying. One of the biggest differences was the ramp and take off weights though. Older models ramp max at 16300, with take off at 16,100, while later models ramped at 16,500 with max take off at 16,100.
...this thread is good practice for my recurrent [emoji1]