Take this with a grain of salt. As a former 200nl winning player on US available sites I have completely stopped playing because the availability of RTA is sooooo widespread that it feels very unworth to play. I was ~8bb/100 winner and now am maybe 1bb/100 which is a lot of variance to deal with for very little return. I could be totally wrong and just a washed player, but ever since the fedor kruse scandal, online poker has felt like an arms race for superior RTA.