For good measure, here is System C:
Syd 7/7 Rythm of Dance


I won't disclose all the rules here as yet, see if it gets in profit for the year. But these are based on my Fitness Ratings, all selections are ranked in top 3.

System A concentrates on male horses only with no more than 10 starts.
System B includes mares as well and concentrates on horses with less than 20 starts, so will provide more action.
System C selections are Top Rated in Fitness Ratings, so the strike rate will be better.

These should make a profit at BOB & Betfair SP.