I'm not going to go so far as to say Smart is shooting *well* when he's at 36%. However, I think you do have to look at how he's been used, because it's hardly typical for a high draft pick PG.
His 3PT shot is at least encouraging. Certainly being at 34% with one really bad month mixed in, it's not crazy to think he can be at 35%+ with high volume. Which is a good mark and a huge advantage against someone like Rubio.
His usage is very low, and he has a history of being able to get to the line. Right now he's getting around 1 FTA per 10 minutes played but his usage is a tiny 15%.
So here's a "realistic" projection that I think is at least encouraging, especially if you consider that he has a very real chance of making more than modest improvements after age 21.
1) Minutes from 26 => 35 (+33%)
2) 3PT to 37%
3) Usage from 15% => 20% (+33%, applied to shots attempts and assists evenly)
4) FT% to 75%
5) 2PT% to 45%
What does that all add up to?
3PT: 2.8 for 7.5 (37%)
FT: 3.5 for 4.7 (75%)
2PT: 2.4 for 5.2 (45%)
Points: 16.7
Assists: 6.0
Rebounds: 4.5
Steals: 1.7
Turnovers: 1.9
TS%: 56.5%
I don't think those are exactly outrageous improvements, and you're looking at a guy who is giving you roughly 17-6-4 with great defense and good efficiency.