I didnt mean selfspot, sometimes i mix up terms, the ability for every single mainline to have extremely strong spotting range is beyond powerful because on a map like faymonvile where you're going to be hugging cover 60-80% of the time.
It means that for example i place the typical sandbag center and will see... any coming flanks from the northern front, the point left from there, meaning any flanks will be spotted almost instantly, and the flanks from the truck point. Now i'll admit this might not be 100% certainty in terms of testing, but i find that to be the case frequently and it makes for nightmares trying to push someone who's playing defensivly because he gets all the chances to prepare and move around as he wishes while you have to constantly use sightblockers, it also works excellently for units with great range like vetted up vickers (in trench) or simply giving your vickers constant max range firewithout having to expose it self or having your sections move forward that much more.
I think you are very heavily (maybe delibaretly.) underplaying the power of having your mainline infantry get amazing sight range. its partly why pathfinders are as powerful as they are, sight is a great tool. Which is why it's assinged to certain vehicles that come out early rather than later, having your tanks the ability to fire max range almost always is a great boon.
+1 basically