I sail my DSII on a small, 200 acre lake in minneapolis. I work nights so about 75% of my sailing is single handed.
Having now owned Nauti-Cal for 3 full seasons I have made many of the standard improvements found on this site.
The best improvement for me was changing the headsail sheet configuration. I put series 40 ratchet blocks where the original cam cleats were located on the coamings. Installed cam cleats on the centerboard trunk. Instant improvement for single hand sailing.
Installing a topping lift probably comes in second. Makes jiffy reefing much easier. Also makes hauling and douseing the main a much easier process.
The boat sits on a bouy during the season. I have very nice cockpit/boom tent so I leave the main on the boom. Time from arrival at the lake to actually sailing is about 15 minutes, Like Greelake, it seems to take much longer to put her to bed.
Being on a city lake there is a "no gas engine" restriction. This is not a problem on this small lake. I can use a canoe paddle and do the one handed storke and steer method to get home from almost any part of the lake in short order if the wind truely does die completly. The dock is "L" shaped so I rarely have any issue makeing way or fetching it on return. Hoist the sails at the dock with the bow into the wind, Pull the bow close to the dock, remove the dock line from the cleat and hop aboard while giving the bow a bit of a nudge and sail off on reach or run, Piece of cake!
I plan to expreriment with length of parachute cord attached to the head of the jib and run back the cockpit so I can haul the headsail down a bit easier. This has presented problems when the wind is up and I feel the boat is overpowered and a reef doesn't reduce the heel enough. It isn't easy to get up on the deck to smoother the jib that only wants to drop halfway down!
I hope to do a little more trailer sailing this year. I need to recruit a few crew members for that. I feel the need to get back out on bigger water. I miss feeling the rythem of waves larger than 6 inches and staying on one tack longer than 15 minutes. I dont need to launch her in Lake Superior for that but this is "The Land OF 10,000 Lakes" and also the never ending winter.
Hope to launch in nine days if spring ever does arrive.