I just listened to Tom's Tech Tip of the week on Paintball Radio. (Love that show, BTW!)
I agree that marker kick will not affect a single shot, but what about the subsequent shot? As you fire the marker again, won't the kick from the first shot effect the placement of the second. I know we can break down terms here also. "Accuracy" as opposed to "perceived accuracy". Now if you mean any given shot, as it stands alone, will not be affected by kickback, fine. If your saying a string of paint from my old ProCarbine were just as accurate as a string from a mag, then I would have to disagree.
Whatdaya think?