The new designs have a nicer colour I feel. The textured circle makes it look a little less formal, which is nice. Loving the data bars in most of the designs. Can you try #2 with an outline of the wrench, in a "pencil or texta" style line?
PSTO, Liking the colours in #117 and #116. Apologies if I mislead you with the comment about the acronym. I like the fact that the words are aligned left to keep the R, B and T in line (creating the acronym). I think that the wrench+letters+text is a little too much.