While it may seem like a step backwards for most magicians who've passed beginner level, I think a 1on1 about the double lift would be incredibly helpful. It's been said - on these forums, actually - that the double list is THE hardest sleight to perform deceitfully, and that a magician who believes that his double is perfect is just fooling himself. With all of the magic GENIUS at Theory 11, I'm sure everyone on staff could pitch in a bit of advice on the standard double lift, ranging from subtleties to misdirection to....whatever other tips and tricks the T11 team might have! You guys are a team of magic all-stars - I'm sure that you guys all have stuff to tell us on the double that we haven't ever heard about or thought about before. I'm sure we could all improve this very common sleight with your help.
Thanks for reading, and I'm sure I'll think of something more later,
Ryan