I'll take a close look at Payson's medium lights, when I have a couple extra bucks (CAD to USD conversion is never fun). I was not sure if they would be appreciably lighter than the stock strings, so I didn't throw their name into my initial post. I've also heard positive things about Kalium strings themselves, but it sounds like getting them delivered in a timely fashion has been hit or miss lately (correct me if those problems have been rectified).