Yep, impressing improvement.
Not to disencourage a kinsman (vive la Suede!), but isn´t Your design basically a higher cap-design? Central inlet, outlet somewhere else in the cap. The effectiveness should be dominated by the pattern of holes/dimples/whatever in the baseplate. What pattern do You use right now? Square, hexagonal? Conical dimples, as in front end of drill, right?
Doesn´t Swiftechs blocks use a derivate of the cap-design?
regards
Mikael S.