Glad to help. It would be better if tempo sync would just use the current tempo and if tempo changes occur during the delay, it should just change it for future sounds. Current should render with the tempo at the time the sound on the track occurs. Sadly, I don't think the spec works this way. I'm sure Noel could weigh in.

But it might be weird if a sloped tempo change slowly changed during a single word. To what precision do you bother changing the tempo? To the sample?

Not worth the trouble.

If you really need delays working at two different temps where the delays overlap, you could split the track in two and set the two different delays to not tempo sync but with calculated delays, split the clips at the same point... now the delay will smoothly change at exactly that point changing temps perfectly.