I was like you, just topping it off. I've tried all the mods but didn't like any of them. So what I did with my last one was first pour some liquid into the little cap that comes with the cartridge, dip the stuff in it, refill the cap, dip the other end in. It got a very good soaking and though I still need to top off, it's not as often. A syringe would probably be the best way to go but I haven't gotten one yet. Oddly enough, though I like DD I bought a tip and don't like it so I don't drip anymore; haven't needed to with this soaking method.