Could be differences in our SP figures as I have double checked with the same results - try

BFSP $25-$999
Tab/BFSP ratio <1.0
Dutch stake $50

6/05/2013 -$600.0
7/05/2013 $968.1
8/05/2013 -$493.8
9/05/2013 $642.1
10/05/2013 -$446.8
11/05/2013 $7,391.9
12/05/2013 -$950.0


The trouble with this is of course the runs of outs & big drawdowns - it's a bit 'all or nothing' & why I didnt keep following it way back when.