Hi John, same goes for the Isle of White sferics, I have used all of these for the last few years and have found ATD to be the absolute best over all of them. That's not to say that the others don't get it correct, they often do, but I have seen these giving poor readings many times with sferics plotted in areas where the storms are not even located. I'm not knocking them, just favouring ATD as the best from trial and error. Others may disagree so best to use what works best for you. Good to have a few of them to check anyway as back up. I always use ATD combined with the radar and they match 99% of the time which is as good as one can hope for. Hope this helps
