On some guns you can use shim stock, ( lots of time i use soda cans for shim stock ) and adjust your gun nose piece so as the driver wears you can remove shims and file the drive end to remove mushrooming and iregular wear. square the end. I have been using one of My upholstery guns to fasten Tar paper and Tyveck to our Duplex we are building. The granular coated Ice Shiels is very hard on staple guns. The guns are also handy in building cabinets putting on the 1/4 in backing plywood.