It's still possible to print EV in high vig markets.
For example, racing markets can take 15-30% vig across the aggregate, but you may know a certain horse is well overs.
It depends if the market knows what you know.
Although, with my any time try scorers, it's much more recreational/ for a sweat.
It is very hard to model though. So, perhaps market vig is unevenly distributed.