Ok, so this must be the 100th question I've asked about this subject, but double tonguing has been what I've worked on most probably this year (going from not being able to do it at all!). This is still causing me problems though. I can double tongue a single note and it sounds nice and even, and I can do chromatic scales fine too. When it comes to double tonguing arpeggios and octaves however, I'm all at sea. Any tips? Cheers! Jack.