Yes they do Matt, its still a great way to do things, with batch (Or Gang as some folk may know it) being preferable over Constant (Bosch K for EG: the "K" Means KONSTANT") although all the "De Facto" stuff is fully sequential with both fuel AND spark... IE it can retard JUST one cylinder when det occurs or fuel just that one extra etc etc..

As far as horsepower goes though, that doesnt really make a toss of difference