The big difference between the Baycruiser 20, such as mine, and the Bayraider expedition, is that the former has a large cabin and small cockpit and the latter a large cockpit and small cabin. It is a question of your priorities. The Baycruiser can take four in the cockpit, I have done it many times, but no one can move. Tacking is generally a question of handing the tiller across, which is quite sociable. I think the BayRaider Expedition could take 6 easily, but the cabin is just a large cuddy. I like to play house on my boat, and I usually sail solo, or with just one crew, so the cockpit is fine for me. I also like to spend a good many nights on board. This year has been a bit of an anomoly, but usually I spend 20 nights or more on board each summer, usually anchored in some remote corner of Poole Harbour. It is magical (I was on board on Monday night, between the two best days of the year so far.) Performance wise I don't know. I suspect the Bayraider expeditionshoull have the edge as it is lighter (I think) but the Baycruiser is no slouch. The open Bayraider should be the fastest, but I did pity those at last year's English Raid, as they settled down under their cockpit tents on inflatable matteresses, whilst I reclined on one of my bunks, with books, food, several paintings and a radio to keep me entertained. As I said, I like to play house...