I think reasonable salary thesis is how much your overall tax payment is either via wages or distributions.
In my example with hypothetical salary or $154000 you are already paying MAXIMUM 12.4% FICA tax, Trading is short term gain and subject to ordinary income tax so does not matter whether you take this as wages or distribution (in excess of $154000).
Obamacare 3.8% NIIT does NOT has upper limit either.
Not sure how tax payer will be any disadvantage whether you take $154000 salary or $250000 salary on a net short term trading income of $450000 (again these are just an example of hypothetical numbers).
