@tashakes - Well guess what. I contacted Amazon.ca and explained I had opened the pack before realizing they were a different brand name, so couldn't return them and besides I don't want to wait a week or more. They told me I could keep the pens and still get a full refund. So I said okay. So then when I was looking at the packaging, a small card fell out. On it it said ZOET, thank you. On the back it explained they are a small, minority owned business and asked for an honest review. Hmm, If you want to sell someone else's product, say so up front.
Anyway, while I have not really done a good test of the product, I think it will give an acceptable result.
I'll add to this later after I do the necessary prep work, shave the tip to a wedge and try it again.