For anyone interested I just got in an order of Mary Ruth Mark's Tandem Handbook which is a spiral bond collection of tandem instructions and great graphics from a clinic she did. They are $15.99 plus $2 shipping or for you Midwesterners I will have them at the Horse Fairs in IA., WI., and MN. I also have a pretty good inventory of terrets, rosettes and keys. Sandee McKee Iowa Valley Carriage 702 E. Harrison, Toledo, IA 52342 www.iowavalleycarriage.com 641-484-4784