So I got to try out the tour driver and compared it to the 913D3 and the 910D2 (my current driver) all with their respective stock Mitsubishi shafts around the same relative weight. The smaller 430cc club head at address did give a more confident look and the black sole and face definitely looks a lot better than the 460cc. The same goes with the D3 model compared to the D2.
Here's the average distances I got between the 3 drivers:
910D2 - 273
913D3 - 275
Covert - 283
For all three drivers, I did have some mishits for all three drivers (mostly going towards the heel), but the Covert didn't lose much yardage compared to both Titleist - definitely more forgiving. Overall, I was more impressed by the Covert Tour than the regular model and was actually surprised how much better I hit the ball compared to the Titleist. After some thought, I decided to pull the trigger.