hi DJAY,
positioning of the rudder pedals is pretty much a personal thing. If you feel that your toes/feet are cramped, flatten it to the point where you feel more comfort. Some paddlers (like me) like their rudders flat (on the same plane as the foot plate) : in this position you have to press hard on the pedal if you were to make a hard turn as opposed to using just the toes in the current inclined position. Try various positions until you feel comfortable. The reason you dod not see any advice on this site is due to the fact that there is no right or wrong answer. Depending on condition, race or fitness paddle, you may want to re-adjust again, only trouble is some skis are harder to adjust than others and you need to ensure that the rudder is dead straight upon adjustment : the way I do it in mine is dig a hole in the sand, straighten rudder and put in in the hole, fill it up with sand so it does not move,compact the sand if needed. then sit in the craft and get some one to adjust the pedals for you, foot plate adjustment is another important aspect of the set up for your comfort. Depending on the curvature of the bucket you need to leave some room to allow you to perform leg drive comfortably.
Take care.
JDF