Afraid no battle report yet folks - I've hit another small glitch.
Hit a new snag in re-taking the pics under better conditions - my set-up isn't big enough to do it justice!
As my table usually sits nicely in the corner I've been able to get away with blu-taccing the backdrop to the wall. However, I need to add the other fold down leaf of the table to fit everything on, and now the table no longer fits in the corner, against the wall...
Solution - pull it out and build a stand-alone frame for the backdrop that will now stand on the table edge itself!
I will endeavour to get a crack on with things tomorrow....