{Moved from the community}
I recall an article linked somewhere where a simulation was run at 100/200 limit between 10 people of equal skill.
At the end of 1 year, one guy was up like .6BB/100 and one guy was down an equivalent amount with everyone else falling near break even.
It was even smaller after 10 years.
I'll look for the thing since I know my numbers must be off...
-'rilla