I've found that when printing on the Form 3 the resin will not completely drip off, no matter how long I let the part sit after printing. I experimented with a single angle drip fixture, but found that all the resin would drip down to the edge and not consolidate enough to drip. I found that when I created a compound angle fixture (40 degrees down, 15 degrees back), the resin would drip down to one point and fall back into the tank. Depending on your part geometry, you may need to be careful about where the drop point is located to make sure the resin falls back into the tank.
The difficult thing was figuring out the exact geometry so I could close the lid without hitting the front corner of the build platform. I've found this prints well on my Prusa MK3S.
I've used this for several months with no issues, but feel free to remix it or whatever you'd like.
Enjoy!
-Destin from Smarter Every Day