I have a situation on my new layout where there is a steep grade to a old time mining area. The engines serving the area will be Shays and a Climax. The grade rises about 4 inches in about 3 feet. My problem is with the "hump" at the top and the "dip" at the bottom. How can I make this transition better? I have thought about the stuff that levels floors, cement type of material, etc. but nothing seems to work. Other than trashing the steep grade, does anyone have a suggestion. Thanks.