I'm not really having problems with the nute transition, my ppms are at 1200 which is low enough I think so there are no problems BUT the light distance is an issue, my new veg plants stretch quite a bit to catch up when they first go in (or at least this last set did). Looks like I need to go back to the drawing board and figure a new system. Maybe three seperate smaller systems set on a staircase sort of risers? Here is a pic for fun.