The changes to the scow hull are fairly radical:

• the bow and stern have been lengthened and the freeboard increased slightly;
• the longer bow has enabled a pointed bow to be incorporated, which would undoubtedly be an improvement in waves;
• the longer bow contains an extra bulkhead and this provides the opportunity to include a short length of deck at the bow, which should help keep the boat drier;
• without other changes, the longer stern would produce a longer unsupported bottom panel and the standard scow's panel is near its limit of strength, so a pair of low seats have been introduced along the sides to break up the bottom panel and allow the crew's bottoms to stay dry when sailing.

The midship section, aside from the increased freeboard, is unchanged and the bottom panel is still limited by being the width of one sheet of ply. The result is a fairly long (4700 - 15ft 5in) boat with a narrow beam for its length. With the same beam as the standard scow, it will not have much more stability with which to carry more sail.

So there are no changes to the rig and only minor changes to the leeboards and rudder. The leeboards have been lengthened slightly to allow for the greater freeboard, but have the same underwater profile. The depth of the rudder blade has been increased slightly to control the longer boat and the tiller has been lengthened to suit the longer stern.

The longer boat will probably sail a little faster than the standard scow - although it has more surface area to create drag, the longer, smoother hullform will make less hull drag and result in better speed.