What you've done so far sounds good. The ~16 oz of baking soda you've put in will raise your TA around 10 ppm. You would be okay to add the rest of that box.

Thank you for clarifying the "drops" situation. I have never done a base or an acid demand test and am just not familiar with the procedure.

I would like to say to you, okay, go ahead and use those silk sticks but that 6.1% "other ingredients" concerns me. I don't like putting stuff in my pool when all I know is that it's "other". I'm hoping PoolDoc will know what that might be. Until we find out I'd say, set it aside. I know with certainty that I wouldn't use the Step 2 and Step 3 chemicals. Both contain copper and who knows what else. It's what Watermom so fondly calls 'voodoo ingredients'