Hi
Jumping height is clearly too high. It grants player excess mobility, and in some cases lets him skip parts of levels or dangerous traps. This is not possible in vanilla or Doomsday. On this picture from Shadow Wood, I can jump onto that ledge (the shot is mid-jump I think). It's from the room near the end of the hub and cleric's 3rd weapon. Coordinates are on the image anyway.
[img:1loqkwky]http://i792.photobucket.com/albums/yy201/eurasianbadger/Vavoom%20Bug%20Reports/shot0005.png[/img:1loqkwky]