@Catelite 1. Why count wall - It is about SIZE, and the wall is there, it may not be a particle, but it is there, so you must count it to be accurate when it comes to size
2. Doesn't shoot more photons - Yes it does: both of the beams have the same "photon-space-space" (Yours might have more due to the function in your comment at the end) pattern horizontally, but vertically,yours has 4 and mine has 6, and last time I checked, 4 < 6 :D
3. FILT- Your right, I deleted the FILT... I made this laser before I had figured that out, and I had forgotten that my laser had that until u brought it up, so thx. Also, the FILT doesn't allow for a category 3 beam, so it made my laser that much worse lol XD
I don't mean to steamroll your opinion but there are no photon beam "categories."
The number of photons allotted to single horizontal beam has nothing to do with the spacing of those photons, or their strength. The only additional value is that there's a significantly smaller chance that the photons won't abruptly hit a dead end due to how the destroyed metal occasionally produces incalculable angles that photons can't bounce off of. The fact that my beam is thinner than yours, and is -green- is why it cuts faster.
...Basically what I'm saying is, if there's two spaces or no spaces makes no difference, if there's 10 photons packed into every pixel.