The noodles are three pianos that I made, each using three different shapes of strings, which can indeed affect the tuning feel. I will refer to them as "bean shaped", "drum shaped", and "micro drum shaped". I am not familiar with other more formal names, please add.

In terms of tuning feel, my feeling is: drum shape>micro drum shape>bean shape

The "drum shaped" tuning is the most comfortable because the fingers are like resting on the belly of a chubby little guy, which can be clamped around the neck for adjustment or held in the hand for adjustment. There are comfortable positions at different angles, but the hands are not affected.

The 'slightly bulging shape' is moderate, like a slightly chubby and fleshy girl, but the belly is still flat and not protruding.

The texture of the "bean shaped" is a bit inferior, like pork rib essence. When clamped around the neck and adjusted upwards, it shakes the hand and some angles may not be adjustable. It is more suitable for shaking hands and adjusting the inside, but who says she has a good figure and light weight? Everyone has their own choices.