For the past few years I have been using LMM-6038 and have been very satisfied with the results. But since it has been discontinued, I needed to figure out what to switch to. So I bought a 250gm ($200) bottle of LMM-6060 which I think is about $30 more than 6038 was.
Attached are a few pictures....the 6038 is on top (yellow) and the 6060 (green) is on bottom. The first thing I noticed was that the 6060 paste seemed thicker than the 6038......so I had to use more DNA to thin it out (which means it will last longer). But my mixture is no where near precise. It did not seem to spread on the stainless (with a foam brush) as smoothly as the 6038 does.....but that wasn't really a big deal. Because of the dark green color, it is slightly easier to see streaks or spots that were missed. It seemed to take slightly longer to dry than the 6038 (not more than a few minutes longer though....so still not a big deal).
I was kind of surprised that my settings for the 6060 were exactly the same as for the 6038. On my 45 watt Epilog Mini I used 100P/30S. The blackness of the mark was exactly the same too. However, it was a "thinner" mark.....in otherwords, if you look at the attached picture after I washed them.....the 6038 mark looked like Arial Bold whereas the 6060 mark looked like regular Arial. I can't explain that. It's a very subtle difference, but it's easy to tell when comparing them in real life.
I also tested it on brass and it also made a nice dark mark. My settings for that was 100P/9S. But also interesting was that the Cermark seemed to "pull away" after it was engraved (see last pic). You can see the exposed brass between the black mark and the green cermark.
I couldn't tell from this test, but hopefully the 6060 will not leave that staining like the 6038 does.
Overall I'm happy with the results and will keep buying it.