We had a plumber put this in for us. We were expecting the pull down hose to go back up automatically and be in position to use again. It didn't, so we thought we needed a heavier weight.  I called Delta and was told by a very helpful agent that it was just meant to go back enough to easily manually click in place.  It did that fine.  I like the pull down feature. I have to get used to the way the handle must go up to turn off the water.  My old one needed to be pulled down. I seem to have more water pressure with the new faucet.