there are a lot of opinions on this and three are numerous posts on flushing and flooding where it has been discussed over the course of many months, and RUI has done you the favor of compiling it all into easy to search and read forums with many of the top growers of the day giving there opinions on the subject, all you have to do is read it. there not on here 24/7 waiting to give advice, they gave it and it was recorded and is available right here only a few clicks away. they do stop in and give some case by case help when they can but they don't tend to enjoy typing the same things out over and over when they have already posted them 50 times for other ppl.
and please don't take this the wrong way, im not being mean im just trying to help you find the answer faster than typing this all out and then waiting on someone with time to type it all again to stop by. its right there you just have to search for it.