It's a long job isn't it Stephen, but well done?
I've got some before & after pics of a couple of Steering wheels I've done in the past and noticed there are 2 types.
The early wheels have a much finer "gap" between the wood & leather (on vehicles approx before 2002) than on later versions.
Also the wood looks more "real" on the earlier types too!
I'll try & dig out a comparison pic between the 2