I know you try to think and nothing happens, but do it again, anyway.

That sounds about right. I can't remember what I set mine at over 2 months ago, but I remember bnew63 had about 5M delay, so 14' is kind of similar. Try reversing the phase and try again. Remember the cab takes almost a U-turn inside and there is a group delay associated with a 4th order alignment. Reverse phase on mine helped a lot and the delay was less. Trust your ears, too.