Ok, one more (final) guess: (click to show/hide)You added a clamp?
tonearm dampening, either headshell or counterweight.
1 is a little mid forward. 2 has more bass. Makes the soundstage in 1 sound more forward, singer and sax is more up front.As for what you did I am going to guess a downwards VTA adjustment which also slightly increased VTF.
I thought someone already said increased VTF at the beginning.