I think Vonleh is bustproof. He'll space the floor just fine from either forward spot. Here's some of that confident sweet stroke in an open gym session with other college players. I actually think Vonleh is a bit underrated and under the radar because he played out of position at Indiana, and their guards didn't do a good job of getting him the ball in rhythm.
https://www.youtube.com/watch?v=EvpiNVOJOeg
https://www.youtube.com/watch?v=EvpiNVOJOeg