I "leveled" the seat on my commuter, only to find that I would slide forward on it. After my first commute my arms were sore from holding myself back. And of course the next time I rode in to work I'd realized immediately that I never adjusted it but didn't have the tool with me. And a third time...

I think I just need to tilt it back so the nose is slightly up as there is a dip in the middle. Then maybe it''ll be comfortable. If all else fails I could try a road saddle, since I've been riding a roadie for years.