i know that for me when i put the seeds in the ground to sprout they like to climb out of the rockwoolcube and then they become strechy and unruly, as for me i like to keep my grow room nice and balanced. as for doing it the way mother nature does you have to remember this, when planting indoors you are mother nature you have to decide everything for your plant and you want to give it the best chance at life from the verry start imo that is by using the paper towel method. also there is absoloulty no evidence that proves paper towels harm taproots. remember that all a paper towel is, is a tree that is biodegratable and 100% organic, and recomended by all that grow in my neck of the woods, you should buy jeorge cervantes book the medical growers bible, lots of info on sprouting seeds, and yes he says that you get better germ rates using this tryed and trued method, there is a reason we have been doing this since the 80s. and its because it works