[windshield]

when i repair a stone chip,star,crescent,bat wing etc...with a large impact area i simply place pit filler over the hole.I try to cover all the "chip hole".I recomend a pit filler with a good viscosity.I use 3800 cps.Cure the impact area with a square rigid film.Next drill a hole on the center of the impact point without scrape anything.Place the piston over the small drill hole with the proper resin and begin to create vacum and pressure.I use this method over and over again and believe me i dont need to place the large pit adapter.With only the small piston o ring i can fix the chip with more pressure by the piston without leakage beyond the O ring.I believe this method also save me some resin.Thanks for the attention.Good luck!