The answer to the question might well depend on what one uses a drip tip for...
There are people that drip and remove the tip to do so.
Then there are people that drip and refuse to ever remove the tip, like me.
Then there are people that use drips tips to help moderate the heat of the vapor.
Or just because they look really neat.
I can not use delrin tips, because they tend to hold on to
vape juice and then put it right in my mouth.
I like stainless steel or glass drip tips, because they don't have that problem.