G'day Luckyboy.
I wouldn't give up just yet, I'm sure its only a case of finding the "Winning combination" but it reminded me of something I tested a while ago, it didn't work at the higher prices, so I ran it through again and again, at diminishing prices, and guess what? the lower the price the higher the SR and the lower the LOT (surprise surprise) when I got down to 1/1 or less a profit was produced. I then did the same exm acercise with all the plans I had with the same result. Then I went a step further and tested the price thoery over all and randomly without any other criteria and guess what???? YUP the same result. In other words back a Thousand 1/1 chances (derived from ANY source) and you'll show a slight loss on T/O)
back a Thousand 3/1 chances (from ANY source) and you'll show a bigger Loss on T/O.

Pretty sobering stuff I know (thats why my username is "Partypooper) but the message is, whatever the source of info, the ONLY way to win is to obtain 4-1 for the 3-1 chance, and 5/4 for the 1/1 chance etc etc and you WILL WIN!!! (long term)