We can get to your tank in general, tank gunnery, and weapon vs target expertise later. Remember when you said: Still waiting for your explanation of where someone filed off, cut away or shaved off armor from production M-4s converted to DD capability. Exactly what armor, where, was removed by what means? It is your claim . . . now you provide the proof. I am more than willing to be convinced, but I need more than your say so. Oh, and some enthusiast's website won't do the job unless said enthusiast has posted actual period documents outlining the modification, i.e., the enthusiast's say so isn't good enough either. Do wish you would stay on point.