I am using an 80/12 Organ needle, 40 weight thread on top and 60 weight thread in my bobbin and I am using the yellow high tension bobbin case....video is on the B770QEE...
I most often do edge to edge in rows rather than columns but the book teaches columns so try both and see what feels more comfortable to you...
I use medium weight sew in interfacing to make my templates but as in the video I have used true grid and like it a lot too...
Links to info in the video...
https://www.shop.ameliescott.com/Edge-to-Edge-Quilting_c15.htm
while I did not talk about the snap hoop in the video, I do use them and especially on edge to edge quilting... the hooping goes much easier and faster and you don’t have to continually get up from the machine....the investment is well worth it and snap hoops come in all sizes, but you must be sure you get the ones designed for the Bernina machines...