When my idling attempts are successful (which is a relative term) my idling leg get really tired really fast. Am I pressing too hard or is this normal?
Chances are you are fighting one leg with the other. Try relaxing more and putting more weight on the seat.
This seems to be normal. All of my friends complained about this also when learning to idle. It is a sort of discomfort in your thigh, eh? Don’t worry, you will get used to this and it won’t be a problem soon. Just keep practicing.
What do you mean by fighting? Isn’t one leg supposed to be controlling all the action?
That’s what you want to happen. But when you are learning, both feet try to get in on the act.