I chose to do this one as a slow double-tongue but there would also be benefit in doing it as a fast single-tongue.  I focused on relaxing the articulation to flow and try not to sound “pecky”.  About halfway down the first page there are some rhythms that begin on upbeats and I chose to use that as an opportunity to work on my TTK articulation.  Some people suggest starting those kind of passages with the “K” syllable.  That helps keep the rhythm even, but personally, I cannot count on the K speaking in all registers, right when I want it.  So for me, putting the two T’s together and concentrating on not crunching the rhythm works for me.  Also, I probably should have given some time to the descending trills.  – I didn’t and it sounds like it…