Awright - - - So be it!! You want Mark High or Low?? So we don't shoot everyone outa the saddle, we'll keep it at 60 WPM/45.45 baud. Irv, W6FFC, and I once tested the ST-3 down to a six- cycle shift. It Worked well, so the ST-5s/ST-6s should do fine, as should Dovetrons, RITTY, and MMTTY. We'll do it both Saturday and Sunday, Feb. 2 and 3, Between 1500PST and 1700PST. 73, George, W7KSJ