Just to clarify. Hole 16 took 6 minutes to drill. It was one of those porcelain tiles that is so hard that even a Sigma sometimes has difficulty in cutting it straight.
Just bumping some of the tiling tools related threads. This thread might not be current discussion, if it isn't, just ignore this, and it'll soon drop off the list. Don't worry if you bring it back into current discussion yourself though, the content within it could be useful for somebody. So feel free to add to it if you have something valuable to add.