Adam,
Once again, a great topic of which I hope this post gets more then 3000 hits. You always seem to come up with the best topics. Thanks!
I love swales, especially when they are natural or have been refined from nautral movements. Billy Bell was great at swales because they usually were natural or refined and he used them for surface drainage, unlike Arnold Palmer, King Fizzio, and Jack Nicklaus who seem to nowadays have drains in each and every swale, dip, ridge, grass bunker, friggin' containment mound or anything else to add to the cost and justify their existence.
All of you architects out there that are using these things in hopes of PERFECT drainage to compliment your massive earthmovements on sites that really never needed it---as my govenor Arnold Sharwznegger would say, "Too Hell Vitch You" and may you all be banned from building and designing golf courses forever.