Yea.... the nute calculator is great for AN's sales...
Fill out the nute calc, then cut the numbers in half.... start with that. Esp. with clones seedlings and small plants....
Following the AN schedule will have you feeding super high PPMs to plants that are not yet ready for it....
Notice the calculator shows the same nute amounts every week? That make sense to you? By week 6-7 you will prolly be up to the amount they say, but work up to that in stages, starting with 50% for the veg/week1 point.
If your doing a 3part GMB type, are you considering using the lucas formula? I hear good things about it in rdwc.