G'day Scotty,
Yes I have two sets. I have yet to try on my '51, but I did try them on the cafe. I suspect something amiss with either the rocker box or head as I used the glass and wet & dry method to make sure both surfaces were flat (had to remove valve guides). It still leaks ! I will try on the oil tight '51 next time I have it apart.
The chaps name is Lani, and he is very helpful. He made me a few head gaskets, as mine are different due to the through bolting of the head. He can make them in any thickness you want and look to be very well made, at a very good price.
As a10gf says if everything is right they should work. You must anneal them first before use.
Cheers