I just tried this: go to the Arban book, p.155 #3. Slur the first 2 notes of the first triplet in each bar (so you're slurring across the third). What articulation pattern do you use to follow the slur? I found myself using a rather inconsistent alteration of ku (last note of first triplet) tu ku tu and tu tu tu ku and ku tu tu ku. (I was trying, on purpose, not to think about it to see what would happen). Which would most likely be used?