Since we are talking about reclocking here -> I came accross this test while reading about Mutec MC-3+ which I just got. This test measures jitter with and without reclocking and the results seem pretty clear in favor of the Mutec. Have a look. This is a translated text from German and there's a link to the original test at the end.
https://www.mutec-net.com/artikel.php?id=1441822741
"In the listening test, the Mutec MC-3 + re-clocking did not emerge as an exaggerated effect but in a more musical way: instruments got a tighter tonal structure and were presented in a cleaner and dynamically more accentuated way. Regardless of the musical style, the sound became more concise and moving but was still flowing. The lower frequencies sounded tighter and more transparent with the MC-3 + re-clocking, especially noticeable with long sustain instruments such as low-tuned drums or deep piano chords. The overall musical performance was given more drive and charisma, without appearing thereby artificially brightened. The kind of muddiness in the sound that you usually hear only in direct comparison disappeared completely."
"Especially with jitter-prone digital output equipped digital sources, the difference was clearly noticeable: in my case it were a DVB-S PC card for satellite radio reception and a DJ CD player with speed setting. In such cases, the MC-3 + actually worked like a tonal autofocus."
Sounds a lot like my descriptions, including the word focus. I guess when I say it, it isn't credible. When Mutec says it, it's credible. Definitely a bias here.
Also, the CD player NAD C 542 that was used for the J-test had a lot of low-frequency jitter components, which were not improved by the Mutec re-clocker.