HF,
Yes, to all three.
As you said, there is no recommended Tq setting for cruise in the BK, and I have a peculiar habit of using 62%: it's what I used in the S61 and 212, and seems convenient
At that setting I've had pitch up at DA's above 5000' in cruise at 120kias, and at lower speeds. Mountain turbulence has been a factor on most occasions, and sometimes my speed has been down around 100kias.
Just one of those things that you learn to anticipate, and live with.