Hello,
Long time reader, first time poster.

I have been grinding the 4 person HU SnGs for some time now and have maintained a 55% win rate over roughly 100 SnGs. I have recently moved into the $20 SnGs and have won 2 of 5, with 2 losses being part of my bad losing streak for the past week where I couldn't win a 75%+ favorite hand.

My question is in regards to the $31+ SnGs, what is the difficulty level and does or has anyone attempted to grind them full time? If so, what results did you find in regards to opponent skill and difficulty compared to lower stakes?