Grasshopper is not a derogatory term and no offence meant! You are obviously very young and have never watched "Kung Fu"
With regards to thin and thick hands, the internet is not the beginning or the end of Universal Geneve knowledge. The 60s and 70s are not very well documented but there are plenty of examples that have thin hands with a printed "U". The link below is a good reference on the subject but there is more.
https://omegaforums.net/threads/thin-vs-thick-needles-of-the-later-compax.10805/
If you want a master po to quote on the subject, probably best to ask Lous or Jordn.
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