This is my 810 drip tip. It is a simple design but has been holding up well for the last few weeks in my RDA, and has had 0 issues. Fits nice and snug and loosens up over time to come in and out nice and smooth with enough grip to not fall out on its own. 

No supports are needed, and prints in place. Uses very little filament as well. Ideally, you would use this to cast a resin mold, but it has been working in my eSun Pla+ quite well.