Hello Mike. We had a Lyonsport tandem built by Jeff back in '83 when he was building in San Jose Ca. and sharing the shop with Dale Sasso (coincedently, it was BC who turned me on to Jeff and Dales shop). Jeff is one of the nicest people that I have ever had the pleasure to meet in the bicycle industry. His attention to quality, detail and just listening to your thoughts (both bike and nonbike related) are second to none. I have refered Jeff to friends and they report the same level of interaction. He does ornate stuff as well (interesting seatstay design). The Bicycle Trader did a profile on him some time ago - check it out! Currently, Jeff is building a rack to attach one of his kiddie trailer bikes to our Jeff Lyon Tandem (which is set-up with a Longstaff kiddie stoker kit).