Mike, I do have a lightning trigger, I bought it 5 years ago through that site you mentioned. Being hungry to capture lightning in the daytime was the main incentive in purchasing the sensor. My reflexes were not quick enough to capture those elusive daystrikes , unless you had high contrast background storm structure to highlight the strikes, as mentioned by Jeff in his tutorial on lightning photography.
Not having a DSLR I can't say from personal experience how effective shooting in continuous mode is , in capturing daylight strikes. The efforts of Jeff and others indicate it to be a very effective and economical way to capture lightning especially during daylight and around sunset and twilight. The results I used to achieve with the trigger sensor and my slidefilm based slr were good , but I found you could blow a 36 exposure roll in a few minutes . While you could capture half a dozen good strikes, the rest of the roll would be filled with multiples of the same strike if it was a long pulse strike. You also had a lot of wasted shots with clouds only , due to the sensitivity of the trigger in capturing embedded lightning within the storm cloud.
With the advent of 4 and 8 gb memory cards as well as negligible shutter delay or lag , between each shot I'd say with continuous mode on a DSLR you don't need the lightning trigger. I will finally get a DSLR this summer , which will give me the opportunity to test these techniques.
Hope this has been of some help to you as you search for the best way to photograph lightning . With digital, your learning curve is as immediate as the display image of your previous capture, unlike that of film. Cheers, Con.
