If those posts were in English, I'd probably merit them myself--I do trust your judgement, marlboroza, but I like to be able to read any post I'm going to give merits to.
No problems that I can see asking Theymos for a sMerit topping-up. I had to do it once myself when I ran out of source and earned sMerits. Since then I've been a bit conservative about handing them out, along with the ever-present problem of actually finding good posts to merit.
I think there are likely some posts of marlboroza's that I never gave merit to but which deserved it, so I'm going to just do it the lazy way and merit the OP here.