"Harrison Paper" Printings of the 5c, 8c and 32c B4 Booklet Stamps

I question the existence of these stamps. I believe the complete printing was done on Abitibi-Price paper, and the so-called Harrison varieties are actually Abitibi stamps with a different degree of fluorescence. I have come to this conclusion after comparing them with the 30c vending booklet, which is known only on Abitibi paper. Canada Post never announced any paper changes for the vending machine stamps, as they did for the 32c sheet stamps and the 32c counter booklet. I am open for comments on this matter.

Brian Cannon