The 10 yr profit factor in his book for 1990-2000 was only 1.2, but it is designed to stay out of short and volatile markets.
He tested it over several instruments in that period, so you should be able to replicate results. PF 1.2 was for DJIA mar 1990 to nov 2000. Keep in mind that was during a bull and is long only, and he said it deteriorated between then and 03 (not good in volatile markets). Also, he tweaked it a bit to get better percentage profit. Refer to his system trading book.
Stridsman wrote one of my favorite earlier system books. Way better than majority of TA pseudo scientific cherry picking books; he is a pragmatist and an honest author.