He wrote an excellent post about the famous פצועי דכא/דכה controversy.
For those interested in Safrut, this is a must read and something I intended to write about.
For many years now, I use my spare time to research Safrut throughout the ages and also for writing as a Sofer Stam (currently busy with my own Sefer Torah). Here you will find revealing articles about this ancient art and you will also keep track of my progress.