In reply to Davidwi:
Right,
I have taken the view that the grade is what I believed it to be when on ascent. The rest is conjecture.
If you believed it to be E1, it was E1.
You tied on, you climbed, you failed to whimp out in the face of difficulty. Take the E1.
If in you're heart you feel it wasn't E1, then you know the answer. Climb another!