40+80+260 = 380. That's the cost of 1.6 IS2's.
So not double the cost, more like 1 and a half? Almost would be 1.8 or 1.9. Armour reduction seems fine to be, many players complain about IS2 bouncing shots and that's with higher penetration values in general, 425 was just silly as seen in that video that was trending recently.
Overall I must say I am happy with the changes but I was hoping for them to be more all-encompassing.
Soviets didn't receive much attention but I am happy that b4 was nerfed as it was a bit cheesy.
Also happy to see OST receive some early game buffs and the Jackson finally seems like it deserves it's position as the pinnacle of USF anti-armour. Glad to see my suggestion of 240/220/200 was taken on board (coincidence I know!) also with AP rounds JAckson seems quite frightening now, Panthers will have to think twice now when trying to savage the USF lines as they will be facing a higher penetration tank destroyer and will not be able to rely on the crutch of the blitz ability as much.
Only worry I have is in regards to the Tiger vs. Jackson matchup, then again the JAckson is meant to counter tiger so you will have to be trailing those packs with your tigers fellas.
Side-note: What are the penetration gains at vet 3 for Jackson? I'm thinking at mid range with AP rounds it will have 100% chance to pen tiger.