Hi Daz, thanks for your post. Interesting to try one of those offset cobra monsters like you did...always been scared off by the ugly looks...
I think that I might have muddled up the "offset" effect of the clubhead ( change in COG leads to closure at impact etc) with "hookface" which is merely to do with way the face and lie angle combine...maybe....not sure still...still in a muddle from Matthews posts....