What if Veigar's stun radius was smaller?

One of the big problems that Veigar has when trying to land his meteor is that his enemy can still be inside the ring, without getting stunned on the outside, and still dodge the meteor. If we reduced the radius of the ring, the enemy would pretty much have to decide whether to take the hit or get stunned.

Any thoughts? Maybe include a slight (like .10 second) reduction on the delay for the meteor?