The blade is nothing special, DeWalt 60 tooth. The saw is an old Craftsman 113 direct drive, heavily modified. Creep up is an apt phrase. A long time ago an old shipwright shared the secret to good fits. He called it "TNT", trim-n-try, it worked then and it works today. For gnats eyebrow accuracy a miter sled is hard to beat.
Some of my most creative moments have been when I've had to cover up an error in my woodworking.