Haha, I actually did just split the level into two labels and it did the trick, I did that a couple of weeks ago but haven't uploaded it.
So now you can go from beginning to end without the yars effect.
I have been looking at 3x3 and 4x4 size tiles I just haven't got round to it yet, I was hoping to try and differentiate the tiles so they look unique but I think that will take some more work or a new system.