Dumb question. I am ready to put my naca vents in but when I held it up to the cut out of the skin I noticed right away that it would be hard to get a clamp that was long enough to reach the bottom of the vent. The top one can get a clamp on. How did everyone hold their naca vent in place with enough pressure on it until the pro seal had cured. Also has anyone ever used sikaflex for this. Thanks