i see what your saying now but the way i understood is the lower EC is when your not giving them 4 weeks of veg so your veg nutes aren't that high when you swich or am i reading it wrongStoney..If you fill out the calculator w/ Gold at full strength it can be contradictory. At the top of the recipe it gives a week by week break down by ec. Below that is an actual amount in volume as to how much to put in your res. At transition the top line says to end veg at 2.5ec and start week 1 of bloom at 2.5 ec. But when you look at the volume amount to put in the res it drops drastically from the last week of veg and the 1st week of bloom. It is kind of contradictory. I just flushed my system w/ Clearex and cut the nutes back to 2.2ec. Keep your fingers crossed fro me.