The only way of doing this and keeping it as accurate as possible for your personal mixing is the option under the settings/profile menu.
There you can click “use manufacturer specific gravity” if that’s enabled it will use it. If not marked it won’t use it.
but here’s the issue, you would then need to go in and set the weight yourself for every flavor, otherwise it takes the default of 1.0038 which it does anyways for the flavors that don’t have info from the sheets.
This does open two problems so, if you let’s say want 3% lemonade, in cases where ppl use the manufacturer weight, this recipe will be different from yours.
Now we can argue that .o2 g is not much to notice, but unfortunately for some flavors it’s noticeable. 2 drops or .04g of rich cinnamon will taste different then 1 drop - .o2 g of the same flavor.
It only matters when you sharing your recipes, if not, then using option A or B is irrelevant. Just pick what you want to do, over organize everything and be accurate down to the tiniest drop, or laid back and have the numbers put in the calculator by somebody else.
No right or wrong here. But if you pick route b you will have to constantly check msds for changes and apply that, if not you have the same problem as described here lol