i've actually done the first one. on my jump on my warrior i got a picture of it, it's not too clear on what happened but you can see that i'm just a little bit too close to the seat..i'll post it sometime. oh and thank god for boots.
On the first pic his foots slips back there because he doesent have the stocks plastic on the yfz he has laker plastic which the rear fenders and shaved up a lot higher. So you really dont need the heel guard lol