The most persistent and consistent player despite having bad start imo is FOMA. Maybe some others as well but I am on the same table with FOMA most of the time so I know how he play most of the time. You should check on how he usually turn everything back despite having bad start and low chips
FOMA is in a league of his own when it comes to coming back from low chip stack. He has done it so many times that it is certainly not a fluke. When I get that low I start to risk more and go ALL IN on all kinds of cards, which gets me back into the game maybe 2 times out of 10 tries. I just don't have the patience. He is doing just the opposite and then strikes when the conditions are perfect. Respect FOMA