He would be hard to stop if he had the 3 in his toolbox, he's so quick with the ball.
Agree; he would be lethal. However, he has a sweet, mid-range, pull-up jumper and, because he is so quick and opportunistic about splitting defenses, has ample chances to take it. He also can get to the rack and score even with the tall trees down there. Because of that, I'm less concerned about his threes. I'm sure he'll work on shooting a great deal in the off-season.
He averaged 9 ppg for us this year, and IIRC his production didn't really ramp up until late in the season. If he starts next season that number will be up around 12-13. John Stockton averaged 13 ppg for his entire career. I have no worries about Belo. I was amazed at how his game matured in late Feb. and March.
EDIT: Only 4 assists per game for Belo this past season; will be interested to see what that number looks like next February. He has consistent double-double potential. Seriously, I'm a giddy schoolgirl thinking about his potential next season.