I've been using the football grips for a couple of years now and like them alot. Very comfortable in my opinion. I believe they are re-makes of 30's style Harley grips. Various vendors used to sell them for under $20 US. I bought mine through Newbonneville.
Shorty
PS: Just checked their site and they sell a different type now. Bella Corse still sells them (check out their part number BCC-014).