I'm too far into it to change anything now, but I do think the batting is a bit much in combination with the particular flannel I'm using -- it's nice and heavy and far too soft after washing. I think the next time I use flannel I will use no batting or flannel for the batting and cut it all together so it's already straight and ready to sew -- sandwiching the flannel and batting was the beginning of the nightmare of trying to keep those small tabs straight.
On another note, you will LOVE LOVE LOVE your Go cutter! Which one did you order? I have the Go Baby which is the smallest one but it does what I need and it is SO nice having pieces of fabric cut accurately every time! I iron and fuss with my folds to make sure I get good cuts with as little fabric waste as possible and with a little trial and error I have a good system for it now. I have carpal tunnel syndrome in my wrists and a little arthritis too, so cutting lots of fabric with scissors or even a rotary cutter is not an option for me. My Go Baby is my VERY favorite gadget, hands down! I know there are lots of people who say they are a waste of money, but I am definitely NOT one of them! Whenever I have a little extra $$ I treat myself to a new cutting die! PM me if you want to chat about the Go!