I just listened to your IARGUS presentation of May 30th. I enjoyed it very much. For those of you interested in the Russian 7 stringer here is the link:
I think the following is an example of "can it still jump" that you spoke of. I don't know who the guitarrist is but have subscribed to his channel. It sounds as if the composer wrote it to show Paganini how it should be done for guitar and this guitarist plays it as if merely a spontaneous afterthought.
Mods; this composition sounds like it dates from a long time ago