I have a pretty good sized pile of broken up rootballs from previous grows I've been stockpiling over a couple years. I've always used FFOF aside from my current grow which is FFOF/Happy Frog. There are a few in the pile which I used Botanicare soil bloom for the grow and a few where I used some free advanced nutes I got from the grow store I frequent. 90% of whats out there was fed with Age Old Organics bloom/grow/kelp/fish and seaweed. I just picked up True Living Organics by the Rev on my kindle and over the winter I will be taking the leap. Is it going to cause me a problem if I re-use soil that's seen chem nutes or should I start from scratch? The soil in question has been sitting under a horse shed and hasn't been leached or kept wet etc. It's bone dry and has been since harvest.