Increase the 1s in the V column by tiny decimal amounts and decrease the 0s too until you get something acceptable.
The texture is being stretched to fit over the face and what you're doing here is basically increasing the texture size until it looks proportionate. The side texture, unlike other textures does not and can not loop indefinitely (to my knowledge) but rather the surrounding bevels just 'extend' outwards. By doing this you are thickening the bevels that appear on the face.
Perhaps I'm wrong with this but I haven't let myself down yet.
It's also probably a good habit to stick with just one top quad when you can. :P