I played DCu4th until my coach decided to put a backup in from the start and play him the majority of mins. So, I was given the same advice, SFDC. Other subs patterns are just there to make BB look more complex.
SDFC is behaves most predictably in terms of minutes, which is important since nearly everyone needs training minutes. Other tactics have different uses. Some of them are somewhat buggy, most work fine.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."