Ex:
0.04 acc for pak40 (if Coh2db is right) x size 20 or 22. That's 80% or 88%.
Yes. Add scatter hits and you're looking at maybe a 3-5 percentage points decrease in the chance to get hit at medium and far ranges. At close to medium ranges nothing really changed because all ATGs and most vehicles have overkill accuracy (100% or more) against 20 or larger target size vehicles at these ranges, except that moving accuracy was slightly reduced.
That's maybe 1-2 hits per 30-40 minute game that miss when they would've hit previously. That's nowhere near enough to justify an experience of ATGs or tanks now supposedly missing a lot more or missing multiple times during engagements; that largely seems to be perception and confirmation bias.
It's clear that the TS changes won't suddenly make mediums extremely durable or that the effects are even noticeable enough, but there isn't much else we could do and it's better than nothing. So far along with the heavy tank changes it seems to have given mediums a comeback, even if the TS changes are largely perceptual (as in players might interpret the changes to be more powerful than they really are and are now more willing to build mediums again), so that's good. It's been fun seeing mediums being used in the tourney and in automatch.