Rob; That was an excellent review of the literarue regarding 3 or 4 cuff method. We use three cuff with a quick duplex of the EIA/CFA to r/o inflow disease. What are you (and others) thouhgts on toe pressures? Are they reliable? Terry Case University of Vermont P.S. Title of my book is "Primer in Non-Invasive Vascular Technology" published by Raven-Lippencott. Thanks for the plug, Brooke!