We have raised all the rev share payouts.
From $0 and up to $750 in joins for 65% Rev share or $25 PPS
Send up to $1450 in joins for 70% Rev share or $30 PPS
Send up to $2200 in joins for 75% Rev share or $35 PPS
Send up to $2800 in joins for 80% Rev share or $40 PPS
Send up to $3500 in joins for 85% Rev share or $45 PPS
What allows us to do this is the returning members traffic. 
It seems they leave after a few months no matter how much we give them. 
But they come back and rejoin in enough numbers to raise the payouts.
Some members will still be associated with the original affiliate, some will not. 
So we raised the payout for all.
http://www.paulmarkhamteens.com/affiliates/