I'm not going to focus 6-max turbos, sorry
There's definitely merit to playing them to memorise what the opponents' ranges tend to be in Spin & Go Max when 2 places are paid (I'm sorry to hear that it's unavailable in regulated markets, such as the FR/ES/PT pool), but I can't rely on 6-max at those times when I intend to profit instead of learning and prefer less swingy ways of earning the same $EV per hour, which, as a rule of thumb, are the poker formats where I have the most experience.
(Newbies shouldn't attempt to play Spin Max nor Blast for a living - those are very special formats, which I don't mind playing only because I've been studying them intermittently with Holdemresources Calculator for over 2 years, and yet, I'm not crushing them, not even close.)
The plan is to grind 45-90-mans when the BR is below $80, and to take shots at $3 Spin Max when it's above $80 and I have nothing else to play
So I guess that my typical day will consist of a 45-90-man session with a few Stars kilofield MTTs added, followed by spinning on some late nights after the 45-man traffic diminishes.
So, as you may have guessed, my sample sizes will be too small to draw conclusions about expected ROIs. I hope to earn those bucks really fast