They are hard to get at Keith but 3hrs? I can't remember does any of your natural gas retrofit kit extend into the vicinity of the lights? That may be where your problem is. I have changed each of the bulb on my Contiques at different times and I'm sure it only would take 15 mins total. For example I just changed the fog light in the Ford parking lot that was wet so I couldn't get under the car as to avoid getting dirty. This took no more than 5 mins because I had to do it by feel.

If you ever need any help with anything I'm usually in town on the weekends. Shoot me a PM and I'll give you my new numbers.