19 minutes ago, Duvel said:
Boulderdash … pork collar is of course best sliced up, marinated and grilled over live coals: Nackensteaks !
You are, of course free, to disagree. I don't have a lot of experience cooking pork collar but almost every source I looked at suggested that it be cooked low and slow. The one that suggested grilling it recommended doing so using indirect heat. None recommended your method.
By the way, the word is 'balderdash'.