I'm currently using aNueNue Black Water and Clear Water strings. They have a bit lower tension (but they are not floppy) and I find them really very easy and comfortable to play. They are new and not widely available yet, though. They have different gauges than other fluorocarbon sets, so for people who haven't yet found strings they swear by, or who'd like thinner or differently balanced strings, they may be worth a look.