Does final flush blueberry add flavor?

Does using one of those flushing agents that claim to add flavor to your crop actually work?

I was thinking of using this: http://www.amazon.com/Grotek-Final-Flush-Blueberry/dp/B004EU0YXU/ref=sr_1_2?ie=UTF8&qid=1372976763&sr=8-2&keywords=final+flush

Because i'm growing Blue Dream and one of it's parent strains is blueberry. So i imagine if it work i'd get a really tropical flavor.

looks like a waste of money to me ....keep it ohh natural.... just flush with ph'ed water if you feel like flushing

Have never used it but sounds like crap to me. IMO Waste of money. Agreed

just get a good blueberry strain instead of putting un natural flavoring in it..

https://www.cannabis-seeds-bank.co.uk/dutch-passion-seeds-blueberry/prod_532.html

flush with sugar e