I been trading with Sigma Management Services since April (When they started live) and they are very consistent in their results. Here are the live results since April;
April 3.22%
May -9.86%
June 5.51%
July 6.18%
August 21.2%
They also have backtest results for the last 4 years on their website
www.sigmamanagementservices.com
if you talk personally with the fund manager he may be able to waive the minimum investment.