First time since April, made a short trip this morning. I have a 150 VMAX. When i first took off my motor did a little hesitation but after a couple of more stops it was fine. Made a good 15 minute run back to the landing and when I shut it down my motor starting missing in idle. It didn't make any difference if it was in gear or not. I'm going next week and buy me some more plugs. I figured i'll start there. Any suggestions??