There are a lot of assumptions in some of the other posters comments, but on the whole I think they are just providing a sanity check. I am about to do my fourth TP run of the year to hit GGL and even I’ve questioned the logic and don’t tell most of my friends about them, as doing a return air flight with no time spent at the destination does seem a little deranged and I know that not everyone would get it.

However, I also suspect that some of the posters are not thinking about the fact that the OP may well be flying a lot (comparatively) and still only be bronze. An EDI based business traveller could be doing 30 returns to London a year in ET and just scraping Bronze. In that case having Silver would make a big difference to your working week.