I see the percentage thing as just a bit of a light hearted way of indicating your sexual preference. Obviously a hundred per cent either end speaks for itself. As a bi guy i originally set mine at 50/50 which seemed to fit my situation, but in recent months, and perhaps because of covid constraints and spa closures, I have been craving for more male contact, and so I changed my spec to 60/40 in favour of gay. If I don't get my craving to be fucked sorted out soon it may change to 70/30. If I get to the 99/1 stage you'll find me strapped up naked in the harness at my local Boiler Room spa with a sign saying "guys please form a queue!"