Chito,
41 has a similar amount of hiyaw to 55, more so I think which is the big surprise because it is super duper difficult to get two guitars with different woods to have the same property. Really, it is hard for a recording medium to capture because there is a curling event at the top of the bend.
"Do that signal with your finger" -- you can do it on all guitars but only a very select few actually wail without being flat. It feels as if it has more to go on top of the bend. On most guitars, the note just dies immediately and feels kind of unresponsive.
HIYAW is the major measure I use because most guitars with really rich HIYAW turn out to be guitars that sustain, remained defined across the fingerboard, chords sound like a well trained on the spot choir, have defined pick attack versus sustaining fundamental note, really full of harmonics, sound balanced across all the strings and just are so fun to play that you cannot put it down...