this is a somewhat general question that ive dabbled in before without any guidance. i figured i would ask here, we follow the BRM from the video. ( 50 BIs , move down @ 35BIs and move up at 40BIs) say were a 5% ROI over a 3k sample at the 12s and were having trouble getting action. (open two tables and wait for 30mins or so) while waiting we start sharkscoping some of the higher stakes games( 24s,36s, and 60s) and see a player at each. ( 24s ( -2%ROI) 36s (-4% ROI) 60s(-8% ROI)) now we have 40BIs for 24s ($980) and are ready to move up, can we play the -8% player? or should we i guess? what if its 10%? 12? i get bored sometimes while waiting and start sharkscoping all the open tables to see and i find some pretty sick negative ROIs over decent samples. whats the upper limit we should consider? 20BIs? 15BIs if theyre really bad?  im just wondering what your guys thoughts are. obviously sample size is a factor, all of the above were over 1.5k samples i scoped last night. so it got the wheels turning.