What knots to use to set up a 2-tree TR anchor with 150' static line?

Yes!

A bowline with a bight, not on a bight.

Daniel Hamilton wrote:

Is that a triple bowline ?  (Meaning the small loop you make in the initial step is a coil having 3 windings)

Serge Smirnov wrote:

Is that a triple bowline ?  (Meaning the small loop you make in the initial step is a coil having 3 windings)

Negative. Start as normal, use a bight of rope to make the knot. The triple wrap comes from the Yosemite finish with a bight instead of a tag end.

Couple other neat tricks.

Skip the Yosemite and you get two ears that can be used to connect with 2 anchor points, be they pro or other options.

Throw a double bowline (with a bight and you get 3 loops for tying into pro.