I have a question as well.
I've also wrestled with the concept of “primarily” and with trying to find some alternative wording that would be suitable here. The bare word “used” seems to me to be very broad. Does it constitute one use in a decade or one use ever, or is it some sort of regular, continuing use? I have a problem with that.
I don't know whether Mr. Cooper or Mr. Nicholson or Mr. Falk wants to respond to this. Or perhaps we could ask Mr. Gilmour whether he can give us any guidance from the Criminal Code as between the use of “used” versus “primarily used”.