I don't have illusions, that's you.
You want a 100% definitive answer. I doubt you get it.
No one is going to guarantee anything in this sport. You don't know if a 10mm will live or not. If you already know a 4DM is producing the numbers and curve you're looking for, then why haven't you built it?
Fact is that we don't know one way or the other. Sometimes you've got to be the guinea pig. You think I didn't spend a fuck load of money to be at the top? Sometimes it pays off.
I say build the 10 with good components and a good builder and whip people's asses.