Hey Dennis!!! How is going man? Haven't seen you, but honestly was expecting you come to RD logics race and was pretty disappointed to find out that you are not comming.
Listen, about flow theories-there is too many of them and we are stays with ours-there is no laminar flow at velicity we have in cranck tunnel, so clean machine cut surface more then enough to support uninterupted flow, but again-it is our theory. I wouldn't spend my time to polish that tunnel.
The rest you are absolutly right and nothing further I will have to add.
Edward