I came across a video by master printer, Emily York at Crown Point Press. It explains aquatint and sugar lift processes pretty clearly and succinctly. If you are interested in a primer on sugar lift etching, this is worth a look.
I had mentioned in a previous post, one of my plates where I used sugar lift and then aquatinted over it completely obliterating my original sugar lift image. However, I think it's worthwhile to look into for all of you who are looking for a way to be more painterly with your etching plates.