I saw your post, 5 hours after you put it up.
It just happened I was searching Roll Designs pegs, and it brought me to your thread. I posted my question, searched again, and it took me to ebay.
I bought the pegs.
Sorry man, wasn't trying to buy them out from under you. But after nearly 2 years of searching, I grabbed them before someone else did.
There is a race peg, and as far as I know, they don't work with heel guards.
The pegs on ebay will fit heel guards.
As said before, the extra width of the peg is to the front.
I didn't want to say anything and upset you, but I wanted you to know what to look for the next time there's a set for sale.