I concur with many of the points mentioned:
1. Yes, the
boat can be sailed with the weighted swing
keel partially or all the way up.
2. As the
boat still has some swing
keel exposed under the
hull when fully retracted, it can be sailed close-hauled, albeit at a somewhat lower point of sail, with increased leeway, and greater heel. Other boat models where the keel fully retracts into the
hull (beachable) will not sail to windward well.
3. Sailing downwind, with the keel fully retracted, the wetted surface is reduced and the boat will go faster. (If the boat is heavily laden, it will tend to get a little squirrely as
hull speed is approached. Be careful to extend the keel in high
wind before turning off a downwind run, as it will tend to broach (round up) as the turn is made.
4. I will add that the CLR can be adjusted aft by retracting the keel slightly, to reduce
weather helm (if needed, typically in higher winds).