Hi Mark,
I have had the Precision 21 since 2000. It sails and points very well. It is lively and pretty fast. Balance is good and little weather helm unless the kick up rudder slips upward (which it does as the jam cleat gets worn as mine is.) It also sails well in very light air. It has a stub keel with a centerboard that does not protrude into the cabin space.
It is comfortable for a couple to weekend on or longer. A family of four would do fine as well if they watch the amount of stuff they bring aboard.
Mast is just large enough (25') that it is best raised with two. One to lift, one to set the forestay pin. Many use a J pole and winch to help lift instead of shear muscle. Trailer weight for towing is realistically 2000 lbs. It does travel well behind my E-150 Ford van. I have also towed it with a Ford Ranger. You do feel it back there with that truck.
The P-21 has a small round sink and 5 gallon water reservoir tank, has an Origo alcohol stove, and has a cooler with a teak board on top for a step under the companion way. The porta potty is usually placed foreward of the galley space on the port side in the V berth.
The two side berths are 8 feet long, the V berth is actually large enough for my 5'11" body.
I mostly sail solo and it is easy for me to handle. My sail inventory is all hank-on head sails - 155% Genny, 100 working jib, 40% storm jib. One set of reef points on the mainsail.
This all begs the question why I am building a Minuet if I have a P-21 I like.
1. I always wanted to build a boat.
2. I wanted a smaller boat that would be easy to trailer and weekend on and would be easy to launch and retrieve on the shallow poorer quality ramps found on lots of small lakes.
3. Sailing solo, a smaller boat will fit me better for using a smaller tow vehicle, raising and lower masts by myself, and costs of traveling (fuel for the tow vehicle).
4. One can never have too many boats.
5. Did I say I always wanted to build a boat?

- Rob