I saw those Rapunzel huge truss photos, and had some other seed I was ordering from TGS, so on a whim ordered Rapunzel F1 as well. My trusses were nowhere as long as those in the picture. I suspect those photos have been doctored for advertisement. Mine were not that much longer than other similar cherries. Taste was fine, sweet and a little crunchy, but I won't grow them again.
That bottom truss is not part of the one above. I'd sure like to hear if any home grower has seen the extra long ones.