duarte

hello everyone! just wondering one thing about open sizes in microstakes! i play nl25 and i open 3x from all busition and 2,5 on btn! wich is what my coach recommended! but everytime i see a video about microstakes i see the pros opening like 2,2x from any position!
i dont unerstand this size since the rake is high arent we suposed to open larger and tighter too fight this? whats the reason behind this 2,2x from utg lets say?