Great news! I PASSED!
I went to another MOT place this morning ans spoke with a guy who wasn't at all concerned with my HIDs. He knew right away that the conversion was proper.
He simply said that if the beams pass the test parameters it's all good. I didn't even have to show him the printed up article(Thanks Richard!) I didn't even have to bribe them!
So basically, if anyone else out there has the same issue I did, I recommend you try a few places till you get one where they know their stuff and go armed with that section 4.1 printed out.