Note the MyClass filter string must be set to: !maiden,hurdle,steeple

And the MyCalc "poll points" must be set as follows:

MyPts(APRANK,1,4,4,1,0)
MyPts(WPRANK,1,4,4,1,0)
MyPts(BRRANK,1,4,4,1,0)
MyPts(PRRANK,1,4,4,1,0)
MyPts(H:POS,1,4,4,1,0)

Note also you may wish to remove dead tracks, ignore races over 1800m, ignore horses with less than 3 starts and relax the Venue string to SMBAWsmbaw

Finally be wary of horses with 18 poll points or more as they seem under the odds.