You can access all that info about leaders,on pace runners and backmarkers thru the Sportsman much cheaper than subscrining to any kind of rating service.

My only comment would be to wait a few races and observe the track bias,and which type of runners are suited on the day.

That system works quite well on the trots and dogs,and the s/r is much higher albeit at the top end of the market.

However,that's another post I am considering puting up.