How do y'all think these strings sound best, at low action, or higher action? I've been trying to achieve a good "pluck" on a fretless, and have (so far) found that these strings "like" the higher action. Although, they sound great at low action too, but they're very responsive, and they tend to be a little sensitive that way. Have any of you experimented with your action, with these strings? Any experiences to share?