OK, you few guys who shoot flies @ 50 yards when others around you still trying to find the black........what worked for me today with a Walther KKM, 36X Leupold BR optics... a bottle of fish oil found in the Asian cooking section of your grocery.....spread some of that on your target with a lot of white background on sunny, warm days for great sport. My best attractant ever was beef livers, flies beat feet really fast. Your experiences please..........xray9