Regarding a waistband, should it be the same material as the jacket, or should it be the 2 inch thick elastic knit style waistband on "member's only" style jackets? Also, if I get a waistband put on, should the belt go over the waistband or under? I just picked up 2 more of the dress jackets so I can try numerous different configurations if I must. This is not as easy as the description in SYGTWTK!