Thank you all.
Toni, I used to dread square cakes but not any more. I always use a drum to maintain the square shape and for the corners I use a pair of square Edgers which draws it in to a perfect 90 degrees. http://www.edgers.co.uk/new_html/side_edger_new.html
Scrummy Mummy's Cakes, Almondsbury, http://www.facebook.com/scrummymummys
