Play Testing
Now I swear I am not trying to be mean here, but I am rather perplexed at how the Twins made PTB in its current state. I feel like a dozen play tests with it with KNOWLEGEABLE players would have revealed the huge short comings that the Twins have that's currently in PTB.
Because if BHVR hopes to get data from this PTB about it other than generic bug reports, the data that they COULD have gotten if the Killer was stress tested properly, the data they would receive then would be a great deal more valuable. If something is so far off the mark, and you test it and its not even able to perform remotely where it should then the data you get is pretty useless.
Maybe putting new killers under "stress tests" would help you know like where you actually play test the killer with people who are actually trying to win, like in actual real games with players. Which brings up, yet again, the problem with Rank and gameplay balance. Balancing for new players constantly makes the game horrible for the folks who have been giving you guys money for the last 1-4 years.
But dead horse beating lol. just my two cents.