Hi peter d..Welcome..The C4 boards are hard to come by around here..A friend has the C4 10'6" and loves it..Another friend had the 11'6" and it was real nice.
I think in the early days of SUP the C4 stuff was the best there is but pretty pricy..I think the other brands have improved so much that it hard to justify the higher price of the C4's.
Where are you peter?...It sound like you need to demo some boards..

..What are you using now?
DJ