I've almost stopped using pins. I switched to the red binding clips and find my seams lay flatter when sewing. I do use a long, sharp flower head pin to match the points of triangles (put straight in, perpendicular, to the block) then put a clip on each side close to the pin, remove the pin, then sew. The clips slide off easily as I get to them and I'm not pulling pins out and moving the fabric. The clips also have a 1/4" mark on them so I can double check my seam allowance.
I primarily paper piece and was bending pins and distorting my pieces until I started using the little clips. Now I use them even when not paper piecing.