I don’t see how you could have learned “all the basic sleights for handling packet tricks from learning Entourage”. There are no sleights. I don’t handle sleights very well, and I’d be quick to point out the sleights in Entourage. There is one “move” which I’d barely even call a move; it’s easy and natural, and nowhere near a sleight. Everything else is just doing the steps in the routine, and those steps require no sleights whatsoever. I’ve had packet tricks that require the Elmsley Count, double lifts or double turnovers, false shuffles, you name it. Entourage requires none of these. If I had to depend on Entourage to learn basic sleights, I’d never learn basic sleights.