Do not give up....!!. Forget about twigging, simply use default settings.
I am still using a set of rules (3 0nly) that I picked up on this forum some 4 or 5 years ago and am in front by a mile.
Selections since last Sat.

doo 14:30 R05 6 Bikkie Tin Blues NEURALS MET won 2.90
gco 14:45 R05 2 Beckinsale NEURALS CO won 14.40
gco 14:45 R05 4 Rojah Lass NEURALS CO
mop 16:10 R07 2 Star Peril NEURALS MET
doo 16:30 R08 2 Feelin Dandy NEURALS MET won 2.10
gra 16:45 R07 12 Golden Pat NEURALS CO
kil 15:13 R08 1 Van Gogh NEURALS CO won 5.10
san 15:40 R07 6 Violet Ponds NEURALS MET

Since keeping records from Dec 2004 838 bets/229 winners (27%) av div $4.37 POT 19.5% LRO 17

Good luck with your testing.!!!!!

Enjay