As with snowflakes with no two being alike. sewers, blocks, machines follow the same vein. what's easy for me might be difficult for you and as hard as I try I cannot sew a straight seam by hand or machine..I use guides all the time.
I do love the challenge of different blocks and wonder "how did she get the points so perfect" "why is it so easy for her to do it not pping when I pp and it still comes out wonky" it's because we're "different" in the way we sew, cut and press....and ....that's what makes each of us "Special"and our blocks as well!