It is all dependent on the regional commander. Some send more than others. If it is a particularly busy time of the year, the number sent out is affected. For my application, I was given a 2q after semester grades were sent. I got medically qualified and was accepted days later. Never got a 3q. It is all really dependent on your RC. Also, if you’ve got good grades/scores, passed the cfa, and got checked off by dodmerb, you are qualified. You don’t need a letter to know that. If you’re on the bubble in some areas, send the admissions office an email and ask; it is their job and their duty to respond and guide you throughout the process.