I only play MTTs, I prefer to play 4-5, the max is 6 tables, tourneys are running in the same time. However, it stands only for the 8 max, full ring tourneys. I do not really like the 6 max, but I play sometimes, in that case max 4 tourneys.
Most of the time, it is okay to focus more, take a bit more attention to those tables, where I near to ITM, FT or I am already on FT. Otherwise, yes, sometimes it happens, that I miss
hands, run out from time or miss click. I can live with that, that's still me, easily can accept like part of the game.