From: the Netherlands
Interesting changes, might have to try these out. Last time I played a game was with patch 1.03, only playing the AI so far.
One thing I noticed back then was how easy it was to stall the Axis AI and counterattack early in 41/42.
I had a look at some of the historical reinforcement figures and compared them with the in game numbers.
Here are some soviet drafting/casualty numbers I've found: http://en.wikipedia.org/wiki/World_War_II_casualties_of_the_Soviet_Union
According to those numbers (29,5 Million man drafted) the game produces roughly those numbers when the soviet player manages to hold on to approx. 3000 manpower resources throughout the war... so, seems plausible.
Here are the numbers for the germans I found: http://en.wikipedia.org/wiki/World_War_II_casualties#Military_Casualties_by_branch_of_service
They had roughly 17 Million ground + Luftwaffe units (+ unknown numbers of Volkssturm + Soviet citizens in German military service), minus the 3,2 Million they start with and the losses from earlier campaigns + troops that fought in other theaters (according to http://en.wikipedia.org/wiki/Western_Front_(World_War_II) : 1,5 Million from 1944-45), so, maybe 12-13 Million served at the eastern front all together. To reach these numbers the germans would require 9-10 Million reserves from their manpower pool while the game is only giving them (with an estimated hold of 3800 manpower sources throughout the game) 5,9 Million.
Whats more, the first source I quoted is putting 10 Mio of the drafted 30 Mio soviets into: "Discharged during war-Includes those sent on sick leave, those sent to industry, NKVD or foreign units and 437,000 imprisoned after sentencing", which is an important point to remember. Factories require workers, not every drafted man was send to the frontline, in that sense the soviet reinforcements seems excessive. And the germans? Used roughly 12-15 million slave labor from occupied countries, so most of their drafted numbers did indeed serve in the army. (http://en.wikipedia.org/wiki/Forced_labour_under_German_rule_during_World_War_II)
Maybe the reinforcement numbers could need a little tweaking?
Something else: In my game vs the Axis AI I noticed that the germans at one point had 1 Mio Manpower in their reinforcement pool but couldn't use them (most units were at TOE < 30% at that time). The reason was an empty armament pool. I see that the latest patch is correcting this somewhat, but these numbers ( http://en.wikipedia.org/wiki/Eastern_Front_(World_War_II)#Industrial_output ) suggest that the german industry should have even greater potential than the soviets, they just weren't using it for an all out war production until late in the war. But, being starved of armaments so that conscripts can't even be armed with sidearms seems a little excessive.
My 0,02 Euro for today
In cases like these it is risky to use Wiki as a source... I am not saying you are wrong but I would try to find better sources...
"It happened, therefore it can happen again: this is the core of what we have to say. It can happen, and it can happen everywhere.”
¯ Primo Levi, writer, holocaust survivo