I also recently purchased these Highway Pegs. 556ALPHA is correct about taking your time. My install went perfectly with the help of my wife eye-balling my hand drill from the rear of the bike making sure I was level while drilling. Also, make sure you have SHARP bits and easier using serveral bit sizes to work your way to the final size hole.
These are well constructed as previously noted and appear well worth the investment. Also I must add that they DO NOT appear as aftermarket. They tend to blend with the bike and actually not that noticeable. Great design!
I have not taken my long ride yet from So Cal to So Dakota but these pegs should save my knees!
I do have a couple comments. First, I'll need to train my feet to be able to raise and lower the pegs without having to look down. My initial ride out on a local So Cal freeway I could not find the pegs using braille and had to take my eyes off the road a moment to find the pegs. If you ever ride on L.A. freeways, you don't want to take your eyes off the road for a millisecond. Again, i was only testing them as my main use will be for long trips on open road.
Second, with the left highway peg down and while using the shifter in the normal foot position, I tend to hit the lowered highway peg with the tip of my shoe. No biggie, I just need to get used to the peg being down and move my left foot further back .... or flip the peg back up when not in use.
Any comments from others?