Yeah I agree, only once since then have I heard wardrobe rattling thunder, and that was just a close CG. I think most of the thunder since then has been elevated in the storms. The time before that was the August 2006 storm, I went to Asda with my mother and when we came out the sky was black to our south and she joked about seeing a huge flash of lightning but it turned out to be one of the largest storms I have seen in the UK.