ok. because my theory is, with the drowning roots thing, is that the whole point of the 2 week flush isnt necessarily to get all of the nutes out of the soil, which you do on the first or second flush, is to be givving the plant only water for the 2 weeks. as i understand it. this in turn tries to replace the chem ferts out of the plants with just water. also why some people will use molasses with their flush water. well if my roots are completely drowned in water, this would in turn, hopefully, do the same thing since it is constantly sucking that water up through transpiration to get oxygen to the roots. this would, again hopefully, clear out most of the nutes in the plants and buds in that 3-5 day period. this technique is better explained in another thread by Riddleme. Riddleme also never flushes at the end. and gets good clean smoke with completely chem ferts. he says that the harshness and such is due to lack of drying techniques as he dries his bud for 2 weeks, veeery slow dry. im going to slow dry mine for 7-10 days. also supposedly that harshness is due to the abundance of chlorophyll that wasnt evaporated in the bud. do you think your friends dried too fast or incorrectly.