So many good points being brought up here and they all make sense to me.
Bonnie put her green on the bottom when sewing her QSTs. If you do it that way you are not helping yourself nest the seams on the next step.
I like the shape it makes when the white part of the QST is next to the tri recs block.
As for the long sashing strips, I think I have done that only on one quilt. I always sew my sashing to the left side and bottom of my blocks.
I have been working on making more units - HST and tri recs. I used Eleanor Burns triangle in a square ruler. It was SO MUCH EASIER and every single one came out perfect! It does waste more fabric than the tri recs ruler but it is so worth it for what it saves on my patience.
I have changed up several blocks in mine but I think I will be happy with it. Time to starting sewing some blocks together.