I personally use only Joye 510 attys, and do not remove the wick or bridge. Just 4 drops directly onto the bridge. Rarely leaks, and vapes great every time. I use a drip tip and drip
through the center hole. Perhaps your problem is not the atty, but the battery is not giving enough voltage to vaporize the
juice well. Weak batts tend to lead to flooding.
If you are not using Joyes, which are about 2.5 ohms, but rather using SLBs, which are 3.0 ohms or a little more, and a regular battery, then this can also lead to not enough power to vaporize the
juice well. SLBs are generally best on true 3.7V or 5V PVs.