It'd be possible on ET that a guy stating doing $500/Day maximum is actually trading 10,000 shares size, whereas another telling you trading 10,000 shares size is actually doing $500/Day at best. :D
https://fx2.oanda.com/mod_perl/fxcontest/fxcontest.pl?rm=contestDetails&contestId=21
Start Date February-01-2007
End Date February-28-2007
Don't miss. :D
"... even Oanda seems to have problem with big size profitable traders, ..."
According to Oanda's web site, 10 millions units per clip is automatically executed, and there is no limit on the number of clips.