Thanks to chip, stu, simon, et al for the informed replies (if i missed your name it wasnt deliberate, thank you too )

The original idea came about when I read about a guy who had made his own ECU for an escos (flux capacitor if i have made the right connections in my head, but im not sure) in fast ford, years ago. Some time later I heard of MS and heard some typical horror stories, and being slightly gullible and by no means an expert, I believed it wasn't very good, so got talking to my brother about our own ECU. Then I started to hear more factual, informed information about it and in the right hands, how good it can actually be.
Now i'm more informed with facts (hence the thanks) I got to wondering about its limitations, and if it can be made to work as per a factory ECU. I know the technology has existed for some time, as my own car has it I was wondering if between us, we could scratch build something, based on MS, but an improved version. I think it would be a great project for us, I want to learn more about this type of thing, and my brother wants to learn more about the mechanics of cars, so it would be a mutually beneficial project, that we can both be proud of.
It doesnt seem like I need to do this, perhaps we'll build our own MS and have a play with it, i'm sure there's plenty we will both learn from that.

So, based on that, what do you guys think we could improve on? Would speeding up the sample/correct time improve anything noticeably? things like that.

God, im such a fiddler, I cant leave anything alone. If i had T6 i'd still want to dick about with it. I'm just fascinated with this, and reading about it makes me want to go out and have a go myself, rather than claim I know about it. If I go armed with good, informed information, I wont go too far wrong, and will learn by doing too

Cheers

Steve