Castle has the form to be a good in game 3 point shooter. Will he be okay, good, or great, nobody knows. Hawkins had great form his freshman year but shot 33%. It's probably the one skill you wished you lacked if you could pick one bc it can be improved upon. Other stuff can't be improved on.
The rest of Castles game on offense and defense is just solid. He ran into trouble at times trying to muscle through 2 defenders at the rim thinking it was high school defenders.
DC we all know is ready as a defender, and of course there is a lot to learn at the next level. DC will need to show He is an in game shooter, but it's not essential to his game. Bc that could make him great. More important DC has no post game skills that will translate to the next level. So he will certainly need to work on that. With his work ethic, he will improve.