Another idea for E1M1 :)
In the WR he lands on flat ground after the button presses. Either just have enough speed to land on the sloped ground, or bunny onto the railing first to gain enough height to allow you to land on a slope after a press.
Recent runs
Level: e4m4
Level: e2m3
Level: e4m1
Level: e3m1
Level: 100m