Position Sizing SPA 3 Equal Value Stocks or the 2% Rule

Hi has anyone analysed with SPA 3 if you are better off with equal size trade rule or say the 2% position size rule that some people advocate in books.
Has this ever been analysed with SPA 3 Investor, Trader does this though.
Regards. Pete

Investor has been researched and the edge is based on equal weighting