DublinMeUp
BB less than t80 looks nice
There can be some improvements made t80+ probably because your net expected BB won could have been better for the first 50k hands, if it is low like this it can lead to bigger variance in addition to low ROI.
Last 30k hands t80+ looks okay, maybe you did change something or switched to different games, but unlucky. You are 2.5BB/100 under EV for that period. For comparison there is no more than 1BB/100 discrepancy on my graph for the last 220k hands t80+. So it is a bit more unlucky than usual. Flipping in multiway pots vs. fish in micro games can lead to bigger than standard variance, I think.
There good be mistakes in short stack up to 20BB play. Can't say you are tight or loose shortstacked looking at the graph. Under 20BB it just gets pretty mathematical with no much room for creativity, so your ranges just need to be precise vs every type of player and avoid thin spots overall vs. fish. Know your EV at every action.
'getmeoffcompletely' suggest looking at the 'won without showdown' line. I am not sure it can go anywhere else than straight down only.
Beacuse my graph for t80+ SNG/MTT for this year looks like this: