Flushing time

i have flushed in the past for three weeks, i have flushed for a week, and i have even tried not flushing and honestly there is no difference in the end product. i flush as i have been growing for over 15 years now and it is just what im used to doing, most nutrients people use now are almost all organic. the idea of flushing came way back when people would use the older fertilizers that were heavy in salts. ect. now we have science and we get better answers on things, not too long ago they did research and found flushing made no difference and thats where i tried not flushing. to me it makes no difference in taste and how the buzz is. i flush some times with cold water so i can get some great color fade, and i guess that is the reason why i flush to this day. hope this makes send for you