most deffo white on a white tile ,,make sure its a decent brand i use bal products..never get any comebacks..dont get shrinkage or pin holes when mixed right .
as you grout these tiles ,finger the grout out also and work in small areas cos your water bucket will be full of grout otherwise.labour intensive tile that one.:thumbsup:
just seen this thread ..reccomend the snickers type trousers with gel insert ,,but replace the kneepad regulary..otherwise a life of ibuprofen ...be warned!