I am in the process of refurbishing my rear tail lights. I have been following Norm's progress and have a question. Norm's picture of his tail lights shows 2 of the 3 bulbs having a metal backing, I guess for reflection and to better see the light. I have a '69 S1, so a little earlier than Norms and was wondering if the rear tail lights should have all 3 sections with metal reflectors, or just 2 as in norm's photo, or maybe none for earlier cars. My rear lights did not have any metal reflectors and a set of spares I have also do not have reflectors. Just wondering what is correct for a later S1. Thanks.