If you don't expect the trade to work right away, then why would you take it? Obviously you think the stock could trade higher, so why wouldn't you wait? If anything, you should scale into your position to get a better average price if the stock does trend higher. You need to have some degree of confidence in your trades for them to be successful.
i dont expect POT to go higher. i also dont expect it to tank right away. i think bulls will put up a fight here, around $180, but in the end they will fail. the reason i shorted and did not wait was in case i am wrong and bulls are weaker than even i think