MacMullen,

The pocket is great. I wore it again today and having my wallet that accessible was great. And to be honest, there is a slight "spy" feeling about reaching between the aprons and bringing out my wallet to pay for something in a store! People are a little surprised when I pull the wallet back out.

As for pulling the kilt out of shape, the pocket is on the underapron. Unless you put something very bulky in there, you would never be able to tell. And since the underapron is "buckled" (Jeff uses a different system) at the waist band on the left side, and obviously buckles up on the right, it is well supported. I would be more concerned with something too heavy pulling the whole kilt down the waist!