I like the elastic shock cord for a righting line. It's immediately available when I need it, but out of the way when I don't. Righting methods are numerous and opinions abound. They're plenty of old threads on the subject.

The idea of an occasional intentional capsize is a good one. It's not just weight but technique that is most helpful in righting the boat. Just like anything else.. it takes practice. Make sure your mast is waterproof. If you can't, then use a bob.