The title kind of says it all. I have owned my F6B for three years and have logged over 30,000 kms. on it and just yesterday decided to install the Kuryakyn Ergo ii with 6" arms and dually ISO pegs. The arms were installed flat or parallel to the cylinder heads and ground. I rode 626 kms., much of it using the new pegs. Not only was it painful getting off the bike but my tailbone was so sore for hours afterward just to sit on a chair or couch. I have the stock seat and have never had this issue with the stock pegs. I think what is happening is my weight rides more on my tailbone because my legs are elevated by the pegs. Has anyone else experienced this and if so, what did you do to prevent it? I suppose a gel pad or some other soft seat pad might help.