Don't think about the 180, aim to reach a certain picture perfect position when you land on top of the pad regardless of the maneuver up (position as in whichever manny you want to lock into, for instance if you're going to halfcab nosewheelie then don't think about the halfcab, think about fakie ollieing up the pad into what you ideally want to then feel and control like a straight nosewheelie). The more you will focus over the 180 or whatever the trick in is, the more distracted you will be from your actual goal which is finding then holding the balance, not just spinning up the obstacle.