I assume there's a point in overall speed where the slowdown from caps-up/down -> letter-up/down -> caps-up/down is worth the reliability drop from coordinating

I assume there's a point in overall speed where the slowdown from caps-up/down -> letter-up/down -> caps-up/down is worth the reliability drop from coordinating shift-down -> letter-up/down -> shift-up. I think I hit that point sometimes entering passwords and other frequently entered info, but the reality is for most typing none of us get there.