All '69s had the "lower rocker molding", style trim or not. Obviously convertibles did not have the drip rails. Z21 also included bright vertical trim on the tali lamps. Colors 51, 57, 61, 67 did not receive black rockers. The D96 pin stripes could be ordered on a car w/o style trim. If a car was ordered with Z21 and an optional stripe [D90, DX1] the pin stripes would not be applied.
RS included style trim. SS included some of the style trim features.