The two main differences between the Buell pegs and Daves are:
Buell pebs push you feet farther back, tilting you more forward,,, IE uncomfortable! Daves lower your feet straight down and are easily removeable for spirited riding!
Daves brackets allow you to keep your factory rubber topped peg to further improve comfort and reduce any vibes you may encounter.
Daves peg lowering brackets were the choice for the world record iron butt ride set on a Blackbird!