I want to estimate if one transaction I make after another will fail or not. The error I want to check is an insufficient amount of output. To do this, assuming that my pair is wbnb / tokenX, I am going to add the amount in of the first tx to the reserve of wbnb and to the reserve of tokenX I go to remove the min output of token. I use these two reserves to calculate the outmin of the second tx. Is that right as a reasoning?