timboss wrote:What on earth did I do wrong?
This is only a stab in the dark, But I think your running your bubbler wrong, if its down to 80% it sounds to me like not enough reflux going on, That or your take of speed is too fast. Even well in tails a bubbler should be able to pull 90%+ from my experience.
Its a balancing act between heat input , take off speed , and reflux, one can be made to compensate for the other once you have a feel for them.
Bubblers are great but they cant preform miracles without the right input.