Yeah, I stuck with the plastic flanged tips for a while as didn’t like the feel/idea of the foam tips at first, but once I switched to foam I never looked back, a much better and tighter fit, leading to better sound, for my ears at least. Just trial and error, they all have different ways you need to learn to get them to sit right in your ear canal.
I replace my foam tips every few months, they basically just fall apart after a while (I use them 80 minutes a day, five days a week, on the school run walk), the inner plastic/rubber comes away from the outer foam, and you have to fish them out with a hook/tweezers when you get home… 
They are great for me in that the sound quality is excellent, and they have such great rejection of external noise, so you can actually listen more quietly out in public, helping save your hearing. The only thing I don’t like about Etys is comfort, after an hour of wearing they get quite uncomfortable for me, whereas my HD600s I could wear forever and not realise I am wearing them. But then I wouldn’t want to lug those around with me outside, and they have zero rejection, so home use only!