I try to be as accurate as possible, especially in the early steps because it makes the rest of the blocks then top come together more easily.
My son spent last night cutting strips for this first quilt. Of the 30, there was not 1 "v" shaped strip in the set. I told him I was very impressed with that accomplishment. Now I he can slow down while piecing, he will be set. He got his free - "Mom rips out the seam" last night - the fabric slipped so there were parts where it was held on by about three threads and not at all lined up - otherwise I would have had him simply sew the seam next to it.
Cheers, K