I sometimes really like heft in folders when using
them, and the Shaman is a great example for that (I think I could not resist buying a backlock Shaman for more than ten seconds, despite it is a lot heavier than I like in pocket...
But in my day to day life I "heavily" tend to carry light folders (under 100 gram / 3.5 oz normally);
The thing is: Many changes that could make a folder heavier, do not only NOT offer an advantage over a lighter folder, but most times even bring disadvantages (more than just being heavy):
Thicker blade? - 3 mm ffg are more than strong enough, even the 2.5 of a Delica or the 2.0 of a Chap, so why thicker and less slicey?
Heavier handle material? - FRN does everything I need for me and is exceptionally strong and durable
Thicker / not sceletonized liners? Makes no sense to me...
Only thing that could make a folder heavier PLUS offer an advantage maybe: Wider blade (see Shaman, Manix XL..), and as a side effect: If the blade gets wider, it can also get thicker without getting a lot worse when it comes to slicing...
Top three going by pocket-time: Endura 4 in VG 10/Micarta-scales; Stretch 1 in VG 10; Endura 4 in HAP 40