Currently printing a 2 part 'thing' (one of my inventions I sell - so no, I'm not telling you what it is :-) - doing both parts at once - no problems.
One is about 30mm tall - still on 0.24.
It's fine.

I'll try a glande mould tomorrow at the same resolution. Which is kind of annoying as you gain nothing by printing these at anything but the thickest layer you can.
But I'll try it.
And if that comes out fine - I'll print the i3 parts.

Oh yeah I've upped my retraction to 3mm - still at 70mm/s. Absolutely zero stringing and I kept the parts really close to test it.