MrGibbage

I have tried this a few times, but I haven't cracked the code yet. If I have a ship in orbit with 35 degrees inclination as reported by mechjeb, and I want to rendezvous with it, do I need to wait for a pass where the ship is passing north-to-south, or vice versa, or shouldn't it matter? It seems that every time I launch and start my turn, I always go the wrong way.