Peter_IK wrote:Since no other users have chimed in, I'd suggest reaching out for official IK Support at http://www.ikmultimedia.com/contact-support if you have not done so already.
Any standard expression pedal should work with iRig BlueBoard, I'm sure they can troubleshoot with you and see what's happening.
km4qs58S wrote:The potentiometer in a Yamaha FC7 expression pedal has a logarithmic taper and IK hardware products expect a linear taper; so you will not get the proper range with the FC7.