Only an edge refresh can be deceptive ...
As cotedupy mentioned: From time to time you have to get rid of the tired steel on the blade - add Chosera 800 to start with ...
When I buy a new stone my first test is Takeda (AS) and the second is Mikami (B1) or Shirataka (B1) - the knives look like they are from a shed or a shoemaker's workshop, but steel and HT are first class and are very helpful in assessing the stone.
Congratulations - nice knife, but the purchase method was not that great…. It is not okay to raise the price and drive the seller to sin after the approved contact with the first buyer! (Although the seller too ... I will bite my tongue 🤑)
I also wanted (in the topic of knives) to make Mom happy ... but remember - "old trees do not go to a new place". For $ 200, I advise you to buy a "bucket" of randomly selected knives, pettys, peelers ... (eg TK / TJ Maxx). Your mom will definitely choose some "great" knives for herself that...