I have a question concerning 6L6 tubes. The following taken from another thread: If I go with a 30 watt as opposed to a 19w what difference does this make. Does it give me more headroom? Obviously I realize it doesn't increase the power of an amp. I have a 35 watt amp that I want to have maximum clean headroom, not early breakup. So is a 6L6GC going to provide that over a 6L6G or is there more to it.