I upload to DT and IS. Since I am closing in on my 50 upload mark here at DT I am considering between DT and IS for going exclsive. Could someone tell me

1) how much of a bump they got in total revenue after gonig exclusive
2) Any other kind of bonus you get as exclusive
3) which non exclusive has DT as his/her highest revenue generator? This will help me figure out what kind of photography sells better here.

Thanks