Further observations for LoweGear: Getting to the IS after the KV-1S: I have the 122mm on the IS now, but not the final engine or suspension. At this point the IS feels much more sluggish than the fully-upgraded KV-1S did (though it'll never be as fast as the KV-1S), but that will probably help keep me out of the troubles that I had in the -1S when I would reach the front line first despite not wanting to.
Armor does
seem to be somewhat bouncier.
Album of some recent matchmaking follies. All tier 4! All tier 5! Anglo-Soviet invasion! All tier 6 with a cherry on top!