I don't know Mrieck personally, but I'd let him do most anything on my bike. From all the years of belonging to this forum, imo, his expertise
on just about anything related to the sohc's seems first rate. I'm no
expert by any means, just an auto mechanic. But his posts make sense
relating to performance modifications. The pics of ported 750 heads he's
done make me drool. From what I've read/seen on this forum, his work speaks for itself.