I love Pumas - I bought some, sold many, bought some again...

Most of the Pumas I have (had) bear the "Made in Germany from Best Puma Steel" stamp. The ones I have tried shaved extremely well. However, I have seen, much less often "... Best Pumaster Steel" I have only one of these, Puma 39and have not even shaved with it yet. It also is the only one with rubber grip (which I don't like so much, I prefer jimps in the tang, on both top and bottom - as my favorite Puma 52). The 39 is a barber's model - etch says "Pour Barbe Tres Dure" so it must be a good one.

I am wondering what is the difference between Puma Steel and Pumaster Steel, if any. Could Pumaster be the higher-end steel?

Some other variations: the Puma inlay also differs. Some razors have one with very fine contours, and others have kind of fat lines. Actually, I think even the image of the Puma head is different but don't have several on hand to compare right now. I was wondering if the thicker / less fine variety is older or better in some way.

Cheers
Ivo