I was able to speak with a wonderfully helpful employee from Line 6 who assured me that since I have a receipt showing the date of purchase during the promotional period that I will be eligible for the Mission Engineering expression pedal even in the event that my helix rack and control arrive outside the promotional period, which is likely given that the helix rack will be shipping on the 27th of February. Thanks again to everyone for helping me out and I very much look forward to being a helix owner.