Hi Michael,
I just read and printed the thread you 'linked' us to so I can read it at home. The cheque's in the mail for copyright.
Regarding the five board gap method, I'm gonna try it but I've seen some mother f******g bent boards that no wedge or tile spacer will ever straighten.
2 quickgrips, a bowrench, tile spacers and Micks thread.....can't go wrong.:wink: