Interesting.... do you live around where I do? 'Cause none of the growers flush around here and I'm surrounded by peeps that buy that crap all day. 'Course it prolly wouldn't matter much if they did flush... their grow style sucks. (Hopefully you cut your feed quite a bit before chopping with no flush.)
Huey14: The "Grassy" smell comes from the chlorophyll in the plant. Sounds like you're running too much nitrogen in your bloom nutes. This also decreases the amount of THC produced and increases stemmyness and leafyness.
1. Read up on "Curing" and you'll notice most (if not all) of the "grassy" smell going away after a couple of weeks.
2. Check your nutes and find a way to decrease the nitrogen... at least for the last half of flowering if nothing else.
3. Water with plain water the last 2 weeks.... Just plain water and the same amount you would normally water them with when feeding. (No drowning necessary)
You'll LOVE the changes!
Stay Safe!