So...........back out under, the slight clearance between shoes and drum seemed to have increased since fitting so turned the bottom adjusters 4-5 turns extra, and bingo!!!! I can now get it to skid on an incline (not that I would do this normally but a bloody good test!!!) thanks for the replies.
Must say that of all the vehicle forums I have used, this seems to be the friendliest and technically most useful. Well done all members!
VoyagerPig69's post in Handbrake Cable Tensioning was marked as the answer