I didn't mean to say Crocee had a specific slant on how to pin - just that she bothered to find a u-tube video on it, wanted to give her credit.
If Sally Collins pins parallel I guess I will have to go back to her book and pay more attention as everything else she taught me was beneficial to me in getting precision. I thought it would uneven the fabric top to bottom if I pinned that parallel way. It is good enough for basting a garment so you don't stick yourself, but I never used the method for other purposes.
Glad to know I am not alone out there on the left!!! Thanks!