Ok Russ as promised, here is my feedback using only tonnage numbers. But first:
IMPORTANT FEEDBACK FOR EVERYONE'S PROPOSED NUMBERS!!!
While looking into these numbers, I came across a potential issue in what everyone is proposing.
Mainly, if the stated goal of these tonnage restrictions is to provide teams with the "larger group size" the tonnage disadvantage, then there is an important aspect that is being overlooked in the form of how large groups PAIR with another group if they do not form a ten man.
Mainly, If you where to form a "2 group side" with a large group, while the Large group DOES have less tonnage to play around with, the fact that these large groups need to be paired with smaller groups with MUCH more favorable total tonnage can STILL see large groups actually KEEP a larger team wide tonnage advantage because people's numbers do not currently account for what the groups are going to be paired with.
Consider the following number that others have proposed:
2 man: 200 ton max
3 man: 260 ton max
6 man: 360 ton max
9 man: 540 ton max
10 man: 600 ton max
12 man: 720 ton Max.
Now on the surface, it still looks like the smaller groups have a tonnage advantage individually (better averages per player.)
But then consider when you match these groups up into total tonnages for the entire team:
10 man + 2 man: 800 total tons, 67 ton average
9 man + 3 man: 800 total tons, 67 ton average
6 man x 2: 720 total tons, 60 ton average
Despite the same number of groups, you are actually giving a tonnage ADVANTAGE to the team that contains the larger group in many of these proposed numbers because the groups on the other side do not offset one another, leading to the biggest groups STILL having a larger team advantage because they must be paired with smaller groups.
I implore EVERYONE who has proposed solid numbers for the dev's to review to PLEASE look at what a 2 team average for 10 mans and bellow will be, because many of these numbers are still giving the side with the larger teams a much larger total tonnage advantage due to the way they are distributing their overall tonnage. As this could be something that could be an issue that would cloud the system if it is not accounted for.
That being said, My proposed numbers:
TWO GROUP AVERAGE:
As explained above, the way these numbers are structured is to curb the overall impact of large groups by preventing them from having a greater average team advantage simply by the virtue of having to be paired with smaller groups to fill in the gaps for players that they haven't included.
In this proposed system, a pairing of two 6 mans should garner the best "average" across their forces when paired against a large 10 man that must be paired with a 2 man.
Multiple Groups:
Despite looking at the two group average, these numbers STILL should allow for smaller groups to garner a tonnage advantage in the long haul. With the milestones being 2 man having 100 ton average, a 4 man having a 70 ton average, and a 6 man having a 65 ton average before leveling out across the rest of the curb.
This should provide them wiggle room with only a bit more restriction from what they see now to curb top heavy spam groups, ( a 4 man can no longer triple dire / timberwolf drop.) and bring things a bit more in the middle while still providing a bit of a tonnage advantage.
Why do 12 man's get a higher average then 10 mans?
Because the 2-10 man lopsided total tonnage due to team pairings meant that if you where to keep them skewed at a similar (but still lower) level then a 10 man with a 2 man, you would have to roll some of that average weight back into the larger group.
This seems weird when looking at just the list in isolation, but makes more sense when you see that a 10 man + 2 man has a 60 ton average weight across the team, while a full 12 man carry's a 57.5 average tonnage across the team.
Min tonnage:
Min tonnage is tricky because the more variance you give, the more unpredictable it is to balance teams. For a 2 man, I put 60 min only because taking 40 tons in group queue is considered by most to be detrimental under the current game environment. I'm not married to this idea either, but I would say that you need to tighten restrictions on min-tonnage as quickly as a 4 man in order to keep average tonnages consistent throughout the group queue.
I'm not as married to the numbers as I am the max tonnage, but they should account for something.