With the way I grow I might be able to combined my style of growing and every one else's. I might be able to run my recycled soil as my bloom soil and new soil as the veg mix. Doing it that way would allow me to toss half and reuse half every time. This would cut my soil use in half. If I pull the root ball out of the pot, cut off the bottom half I could recycle the top half every time, toss the bottom and have pretty good consistency as the top half always only gets manure and lime added to it and so there would not be a build up of anything or depletion of any thing over time as the lower half would just be the upper of the grow before it. O dam I only have 10 gallons of soil to work with this way but this is how I am trying things first.