I just finally successfully printed a 35mm Delta 100 negative that was exposed in very bright, harsh sunlight at a dirt street location with five people in the frame. My first attempts, with standard filtration with my Saunders 670MXL enlarger on Ilford's RC glossy paper (8x10), were lacking in tonality and contrast despite multiple filtration and timer time changes, so I switched my StopClock Professional timer to its split-grade mode and ended up with a perfect print! What a relief!