As far as sloping rails are concerned I never really liked them, and prefer to use normal straights going up half a girder at a time. Not only is it more realistic, but the gradient is slightly decreased while still gaining the same height, as it doesn't straighten out all the time like when multiple sloped rails are put together. (Put 2 straights and a sloped rail side by side and you'll see what I mean) For single girder elevations the sloped rails do have their place, but any higher and I break out the normal track. Just my humble view on this. I don't expect you to follow this advice.
Collecting without a clue since 2010