Class rating cutoff

[Bogo]

I was going through my Meadowlands bets since the beginning of the meet and noticed that my win% and ROI are much better when the class rating was at least in the mid 80's. Race ratings below that were horrible for me. I haven't had a chance to look at this for some other tracks I play, but was wondering if anyone else uses some sort of class cutoff or does not play certain types of races at certain tracks?

[pandy]

I haven't kept track of my stats at different class levels, but at the Meadowlands, if the CR is below 85, a lot of those races could be lower level trot races and non winners of 2 paces, which are a bunch of slow horses. The NW2 races are often filled with horses that are 1 for 19, so it makes sense that they would be hard to handicap for profit. And the cheap trotters break a lot.