I'm leaving the new glass lips alone for another day before adding filler to ensure a full cure. However, Hot shop temps cured it enought to start trimming things up. I assumed this would be a horrible task and was WAY wrong. Mr. Fein Tool made is a walk in the park. The undersides of both lips were totally finished in 30 minutes. A little more finess work and they are now ready for a cowling. :)