I like the two tone colors of #69 (gray background up top) the most from your revisions. Not jumping out to me as my favorite, but I like the design concept very much and I think we can do more with it, it's close. I'll give it some thought, let me know if you have any other ideas for how we can show the "SL" at the top.
Are you able to make any additional revisions for how the "SL" will be presented? The symbols used are not currently my favorite but I still feel it's very close. Let me know if you're able to try a couple different designs to consider, thanks