re: Poker & Quality vs Quantity
don't know what's you plan.
if you are trying to max you EV.
it depends on a concept called marginal profit.
like by playing 1 table, your EV is 20bb/100 hands
playing 4 tables, your EV is 12bb/100 hands
playing 5 tables, your EV is 10bb/100 hands
playing 6 tables, your EV is 8bb/100 hands
by sum up all the possible plan
playing 1 table, EV 20bb/100
playing 4 table, EV 12*4/100=48/100
playing 5 table, EV 10*5/100=50/100
playing 6 table, EV 6*8/100=48/100
see throught the above, it makes clearly that
when adding one more table from 4 to 5
it cost nearly Zero, add Zero cost, but potentially adding 2big blinds per 100 hands, it is marginal adding profit.
but when adding one more, when playing 6 tables, you may see that , adding zero cost, you lost marginal 2bb/100
therefore, in this case, playing 5 table is called marginal profit.
and by looking into the examply, think play exact for max EV profit is always right, but you need to know where is your margin. GL