I get hard draw and poor quality taste on my Prodigy. Usually every day or two, I clean the atty with Ever Clear - 190 proof pure grain alcohol. The performance returns to "normal", and the liquid taste great again. I seem to average about two weeks of use on an atty before it is shot.
I use an 801, I think the large reservoir gets kinda "gunked" up after a full day of vaping.
If your dripping blow the atty out every hour or so. Mine gets a real hard draw and that helps alot.