So this is probably old news to everyone but me but for the last couple of months I have been addicted to Custom's "premium" notch trowel. Fabulous coverage, excellent adhesion, good knock down and for most part the best thing to come along since sliced bread and the gramophone. I have been using them for large format, 12x12, wall tile (the smaller size) and cannot seem to find a down side. Wondering if anyone else has any feedback on them??