how do you think your winrate would change between 8 tabling and 1-2

[Adam22]

i know that most of you and myself can play 4 tables without any real signifigant loss in win rate, but when you're playing 8, 12 or 16 how do you think your win rate changes compared to just playing a very small number where you are able to notice all the little things about your opponents, the texture of the table and such.