Shun I would agree with the others that have weighed in, specifically it is the skill and the preference of the surgeon that determines external vs endonasal rhinoplasty. And the issue of short term healing is relatively insignificant, since the focus is on a surgical result that will last a lifetime. And as all rhinoplasty surgeons will tell you, it takes a year or more for final results. I want to bring up another point however. If you are truly decreasing your profile by a centimeter, that will take a long time for the skin/soft tissue envelope to contract down to the new structural height. In fact, that is likely to become the true limitation to your surgical result. That's a lot of change! Sometimes the skin does not have that kind of elasticity, or fails to show the defined qualities your surgeon created in the framework. So you may be advised to keep a little more overall size, but improve the balance, which would give you a better shot at creating the definition and refinement of an appropriate result.