Originally Posted by
silentC
You should have a gap every 500mm then :)
I went around and did an inspection of mine on the weekend. I found one place where a hairline crack has developed between the grout and the wall. This is at the front door threshold where there is no skirting to cover it anyway. I must say, the tiler did a very neat job of getting the cuts consistent against the skirting.
My tiles are 500mm square too. They're not slate but they do have an uneven surface, like most non-porcelain tiles I guess.
I still think you could have done yours either way. If the grout, tiles and skirting are all the same colour, no-one would ever pick the difference. I'd imagine that if you're fussy enough to lay them all level, you would be fussy enough to cut them all neatly as well.
Maybe we should post pictures of the results?