Why is it!! Spent 4 hours doing form for tonites 2 meetings at Syd. , Melb.

I Have recently come with a new system that is a little like sportz's one with tastab and uni, penalties applying for different aspects. Anyhow i rated them as below:

Syd R1; 1,5 - NO BET SMALL FIELD, Result with no bet
Syd r2; 1,2 - No bet small field, result
Syd r3 1,2 - Small loss as no confidence
Syd r4 4,5,2- chose somethihg else
Syd r5 7,9 - as above
Syd r6 4, 10- as above
Syd r7 7,1 - as above


Melb r1 2,1,3- chose something else
Melb r2 5, 1, 4- chose something else
Melb r3 1,4,2 - chose something else
Melb r4 5,1,7- ok
Melb r5 2,4,6, chose something else
Melb r6 4,2,5 ok
Melb r7 9, 10 3- chose something else

AS you can see i rated 6 winners in Melb, backed none and the last one was enough for me to destroy the mobile phone as it paid $14 AND HAD IT RATED 5 BETTER than anything else. SYDNEY- RATED 4 WINNERS and backed none as well!!! Anyone got an explanation for me?