I need to grout a travertine tile wall. Tiles are small, pattern of 2x2", 2x4" and 4x4" tiles. The gap is approximately 1/8". Tiles are tumbled, and there are quite a few imperfections, pits, crevices, etc., on the face of the tile.
I cannot decide whether I should use a grout bag or a float to apply the grout.
With grout bag, it's obviously much more work, and I'm not sure I'll be able to tightly pack grout into 1/8" crevice with the bag. But hopefully I will be able to fill just the grout lines, and not fill the crevices on the face of the tile (it won't be possible to get grout out of them with sponging).
With a float, it's much easier (just float and sponge, same as ceramic tile) but I think tiles will look really bad with all these natural holes, crevices, etc. filled with grout.
So, which is the accepted way to deal with grouting natural stone (travertine) tiles?