Great tips!
Another tip is to lock those two intersections together as they go through the machine. Press down on them with your fingers to keep them from slipping apart. Of course, do not stitch your fingers! That little bit of pressure prevents the seams from moving. in other words, "hold onto to the nest".
Don't square up Less Than the 1/4 inch you need for joining.
My machine has the laser light which helps with piecing. Easy to hit those intersecting seams!
Check the 1/4 inch mark on your machine to make sure it is accurate.
May all your seams be true!