ATM 10. Can I still add mystical ag growth accelerator blocks underneath voidshimmer soil (Just Dire Things) will the effects stack? Or do I even need to bother?

Currently using AE2 growth blocks and actually addition worms. Pretty darn fast right now but it's not breaking my PC yet unfortunately.

Also I'm using xycraft fabricators for each individual essence and it's becoming a pain to set up each time. Any other options? I've tried vanilla crafters and that doesn't work very well without a crap ton of redstone work.