The stock saddle on TCR Advanced is a Giant saddle called Approach.
Actually, I was using it very well without any complaints, but I wondered if changing it might be more comfortable somehow.
I was hoping the weight would become even slightly lighter.
I tried other saddles like Ali 3D saddle and Special Power saddle, but eventually I came back to Approach.
Then last year I switched to Fleet SL, and I went to Seorak, went to Chungju, and used it well
This time when I switched to Reacto, Prologo Scratch M5 came as the stock saddle
I rode about 80 kilometers with the new bike and new saddle..
The buttock pain I hadn't felt....
In the end, I think I might have to go back to Fleet.