Since flipping is almost impossible unless serius, serius undercutting.
Like yesterday someone selling HQ oak longbow at 2k while average price is 8K-

I have begin to do undercutting. I normally undercut for 100 or 200, and i have a floor of 5k per HQ item, if anyone is doing less, i stop, by either leaving the item there, or taking it out of the market.
Since i have a botanist 50 and i sell mostly carpenter HQ items, most of the main materials are free to me so im always making profit, but i also need that the products move, maybe im overproducing too much.