I like to crease the foundations on all the lines. It helps me with fabric placement and weakens the paper making it easier to remove.
I also use washable glue to hold down piece #1 and will also use it to temporarily hold pieces while I flip & sew if I'm having trouble with them slipping.
I also prefer to remove the outside seam allowance on the foundation paper of blocks that have more than 2 sections. It's too much of a bugger to remove it when it gets sewn into the seams and it's very hard to sew through on blocks that come together in the center.
I prefer to use my dulled 12 & 14 needles for paper piecing. Gives them one more use before going to needle heaven.