I'm usually shooting everything in slog2 but I want to try some other profiles like autumn leaves. I want to easily switch between the two, so I tried to save my slog profile to 1 (it goes just after the M mode) and autumn leaves to 2. The problem is that when I save any profile to 1 or 2, I can't lock the shutter speed to 1/50... it changes based on the lighting conditions. Is that possible to lock? Or these modes are pretty useless?