Friction shifting "feel" is most definitely dependent on cables. Good stainless thick cables and firm outer housing that is lined makes a world of difference. Derailleur spring, cleanliness, lubrication and the play in the pivot joints make a difference.
Up to seven speeds is good. 8 and up gets touchy so practice makes perfect. Personally I love my indexed DT 10Sp Campy shifting.
Ramped freewheel or cassette can assist shifts.
Derailleur hanger alignment makes a huge difference also.
Ultimately it will come down to feel, and that just requires a lot of riding and shifting to get the feel of where to place the lever for your speed and cadence.
ps - Jockey wheel play can make a difference also in the feel and needing to overshift and trim.
Last edited by canopus; 08-11-21 at 12:33 PM.