air bubbles?!?!!!!

Myself, I placed the baffles where I wanted them and marked the locations on the outside with a Sharpie. Next, I folded up a small piece of cardboard to support the center baffle at the correct height then siliconed both sides of it in place letting it dry before removing the cardboard. I then ran a generous bead of silicone on the inside edge (sharpie line) where the two outside baffles went and pushed them into the silicone and siliconed the outside edge and let it all set up.