Just to give you some idea of how the north side grade will work, here is an illustration of that grade shown with the various foam build-ups that will be needed to make it work. So far, only the first two section at the left have been seen as part of the construction work in the pictures above. The colored sections are incline materials (cyan = 2%, blue = 3% and red = 4%) and the lined sections represent the level risers (in 1/2", 3/4", 1" and 4" heights). Please note that in this illustration, the elevation is scaled by a factor of 10 over the running length hence the exaggerated appearance of the grade.
This side is primarily a straight uphill run while the Southside grade is planned to be more complex with a couple of ups and downs along the way. Some time later I'll share the means by which I figured out the necessary grades to make it all work out given the goal of reaching a 5 1/2" ultimate peak.