I know opinions vary on whether to replace the extractor right off the bat or wait til it breaks. But I am left wondering, "How difficult is it to replace a broken extractor at the range?" I ordered replacement parts from treelinem14, including a usgi extractor. I still have not gotten to the range, due to a series of unfortunate events. I wanted to shoot the rifle (sai scout) in its out-of-the-box state before replacing parts (sadlak Op Rod spring guide, GS shims, m1 Garand trigger) so as to get a baseline for improvements. But if the horror stories about sai extractors come true for me at the range, would that spell the end of my range day? Or is it as easy as using the 30-06 casing like I did when I first broke the rifle down and lubed it up?