Karl Dahm Special Maxi trowel

[jimbob]

Hi
I've heard good things about these, but my question is, as a novice, which will give me better chance of getting 100% solid coverage for 450mm square floor tiles - the 12mm x 12mm maxi Karl Dahm or a standard 10mm x 20mm thick bed solid bed trowel.
My common sense tells me the latter, as the notch sizes are obviously larger, but not sure how much of an effect the little additional notches on the KD will have.
Finally, if the special 12mm x 12mm is for floors, can I assume the 7mm x 10mm KD medi trowel is for walls??
Cheers
Jimbob

 

[White Room]

I have the 10 and 12mm and find them good trowels, It's allways depending on how flat the surface is. Some floors need something larger because tile size, the 7mm would be an over kill for 4" tiles. It's a matter of balance between the surface and tile