I don't think those Reverb hats have been buffed, I think they were probably originally a pair of "band" cymbals. I have a pair of 14" trans stamps that are similar, about 1000 - 1100 g each. They have a bit of a metallic bite to them (similar to the video of the 13s) but are wonderful in the music and pair beautifully with medium to heavy Trans stamp rides. I think if you really want this weight range in 13s that's probably what you're going to find, and that looks like a real nice pair at a very reasonable price. I've been watching them for quite awhile and almost bought them a few times for the sake of completing the collection (I love these brilliant trans stamps above all other cymbals), but have thankfully resisted my inner hoarder to date.