How many Vegas based pros are earning 500k+ a year and how are they doing it?

All of the old school advice from the Super System era seems to recommend learning a wide variety of poker formats (mix games, plo, nlhe, tourneys). Since Vegas offers such a wide variety of poker games, and the quality of any given game depends so heavily on one or two out of town fish who may visit sporadically, is this still the case in Vegas? Or in the modern ecosystem are the one-game specialists who spend a ton of time in solvers ruling the day?

Of the guys in this income bracket, how are they using their time? How many hours a week are they spending studying, and how many playing? What stakes and games are they playing?

I've made about 150k a year in poker income the last few years, playing primarily online tournaments (BOL, and the regulated michigan facing sites) I've been able to make a similar hourly in the past playing in live LHE games (40-80 and 80-160) and in a very soft 1k buyin plo game in Detroit. I've also been successful playing 2-5 nl live, and online cash up to 1-2nl on pokerstars (probably closer to 80-100k a year in these formats). I probably play 50 hours a week and study about 3.

I'm going to be making the move to Vegas in 2 weeks, and I'm really determined to take my game to the next level. I'm wondering where I should focus my energy. I feel like I have the most skill in MTTs, but I might be able to achieve similar or better results in other poker formats if I put a lot of work in away from the table.

Any advice would be greatly appreciated.