I was just gonna suggest the toothpick to help get them aligned and held in place. I always feel like I'm playing Operation when doing this...Grease to hold them in place
Toothpick to line them up
Spread the orbital's just a little bit for clearance.
My favorite is when you're trying to push one of those things in and it gets caught, bends and then flings off like a missile to lord knows where...