Under center or in the gun?

I know this has been discussed here before, but I am looking for the benefits and the drawbacks for both. So here is the current debate on our staff. We have been a fly (Speckman) team the last two years and have enjoyed the most success in school history. We run mostly split back, but have gone to more and more single back. We have a quarterback returning who we feel is one of our better runners, although we didn’t feel like we utilized him enough this past season. He also has a great arm and good accuracy, but tends to leave the pocket when he doesn’t need to. We have also incorporated much more option into our scheme- midline, inside veer, and speed option. However, I (the OC) feel like we could be a far more dangerous team if we were to go to the gun (same scheme) and allow our quarterback to be more of a downhill runner. I feel like going from the gun makes the option read easier for the quarterback and I also feel that this would help him with his desire to leave the pocket because he will have that separation from the line of scrimmage necessary to feel more comfortable. The head coach sees some benefits to the gun, but also loves how quickly our plays hit from under center. He believes if we are under center we give our offensive lineman more of a chance because plays will hit quicker. He also says that that he likes being under center because the defense cannot see the football, whereas in the gun, the ball is more exposed. He would like to see the gun as an aspect of our offense that we can do, but not something that we hang our hat on. Where I believe we are more dangerous going from the gun more often. For what it’s worth, I would never be in the gun exclusively. Nothing drives me more crazy than seeing a team two inches away from the goal line and they snap it five yards backwards before running the QB sneak. So what do you think- under center or in the gun?