I saw a person on it for about 30 hours chasing a 4X (came back next day and still on it). Can't remember the exact numbers but I think the 4x was close to 200 on the 2nd day w/ starting point in low hundreds IIRC (or at least when I observed it previous day). 75c denom. I can't imagine the hit he took, and it must have been big by the composition of his face as he was playing. He was definitely in "I'm Stuck a lot but have to take it down to recover some of it" mode. I just chase 2xes if they have some help from the 3x.