Question about BB recruiting

[1983 Cotton Bowl]

Although early signing day occurred a few months ago, it seems like there are still a lot of really high profile recruits who haven't decided yet. Obviously, we've been interested in Keith Frazier's recruitment. But I read that Julius Randle also hasn't decided. What is the typical timeline for these types of BB recruits to decide and sign? Seems like BB is different than football, where everyone signs on or about the same day (unless they are early enrollees, etc.). Is there a particular date or timeframe where we can expect recruits like Frazier and Randle to decide?

[DiamondM75]

Waiting for the checks to clear.

[Charleston Pony]

early signing period mid November. "regular" signing period mid April thru mid May (in many cases to see whether grades and test scores are going to qualify)