Since I'm stalled on other projects, got this one out for a closer look.   Previous slicking I can identify is beveled chamber tops, bent release lever, and auto safety disabled by cutting rod. But the main spring looks unaltered, I expected it to be cut shorter than stock.   Using my micrometer, the locking block can move 0.040" further with the barrels removed compared to the barrels installed. The barrels feel fully engaged, no wiggle I can feel.     W