I havent tried Morgan's lager yeast yet. I've tried their ale yeast and it fermented very fast.
If its too sweet for you, the only way its going to get any less sweet is by continuing to ferment in the bottle, which is not what you want. Pouring the bottles back into the carboy sounds like a PIA, but might be the only safe way to deal with it, other than pasteurizing, which would keep the sweetness. OTOH, while the cider might be too sweet for you, I find that most people like it on the sweet side, so you could always just take them to a party tonight and then start over with a fresh batch. Compared to your time, juice is fairly cheap and your friends will appreciate it.