I recently had a bike fitter lower the nose of my saddle in an attempt to make it level. I was constantly sliding forward on it, and when I slid back where I should be, had 2 pressure points under my sit bones. Then I tipped the nose back up slightly to where I stayed put on the saddle, and I no longer had 2 pressure points under my sit bones, but was supported over a much wider region of my pelvis by the outer rear third of the saddle. Now very comfortable again. So guess I'm agreeing with SK on this.
Oil is good, grease is better.
2007 Peter Mooney w/S&S couplers/Terry Butterfly
1993 Bridgestone MB-3/Avocet O2 Air 40W
1980 Columbus Frame with 1970 Campy parts
1954 Raleigh 3-speed/Brooks B72