OK
To get a decent sound, you have to know your environment, use your ears, or someone else’s if yours are rubbish, and tweak dependent on this and not numbers.
To get some form of signature or endorsing deal, you have to be bloody good, and if you want there is no harm in taking what is offered, it puts dinner on the table.
Markbass look like pavement pizza after a night of jäger bombs, absinth and a dodgy kebab.
(Disclaimer - I think I am beautiful but have a face for radio, even my mum said that)