Fun thread
First off, I'm happy with the Mac for what it is - but yeah, if I could change some things, a few come to mind. Besides all of the mods that people (including myself) have done here to upgrade the hardware, rigging etc., there are a few things I wish were design changes...
FWIW, I have the '04 M with the forward galley.
1.) The cockpit pedestel is too bulky and takes up too much of the cockpit (I'm working on changing that now). I'm not sure what the factory could do and still keep a 26' wheel-steered boat, but it's a PITA IMO if there are even two other people in the cockpit while I'm sailing.
2.) The interior cushioned seat on the forward port side, across from the head - I've never quite understood this one. I don't sit across from the head, even if I'm waiting to use it. The seat is only 9" off of the raised-floor in that area, and it only leaves about a 10" walkway to get to the head and v-berth area. It's nice for sleeping though - especially if you are 10 feet tall

. IOW, I wish the forward 4 feet of it was moved outward of the centerline and heightened by a couple of feet. This would widen the walkway, and create a storage bin or shelf that is much taller, albeit only about 7" deep (binoculars, charts, lifejackets, etc.). I have this mod planned someday, but it involves a lot of fiberglass work.
3.) I wish the steering linkage was done better. It drags across the fiberglass and wears on it. Blech.
4.) The 03/04 dinette table is a pain. I have a mod planned for that too.
5.) The head door could be done better, accomodating more knee space inside. Especially if #2 above is done.
Hmmm, that's what comes to mind. Anywho, it's still a sweet ride
~Bob