HDD-05 Eye Size

I've ordered my first girl's head off of Yahoo-Japan, and her body as well, but I haven't got the eyes yet, because I'm a little unsure. I believe the the eye holes on the 05 are a bit smaller than most other heads, so I'm thinking 18mm. But 20mm seems like it might also work, and I don't want to order 18mm only to find that they're too small. Does anyone else with this sculpt have a recommendation of which size would be best, or if they'd both be okay?

More of an example than a recomendation, Lyar is with Volks 20mm eyes.

 

The 05 eye holes are not really smaller but wider and shorter so you might want to have a 20mm round pupil type, more like an O shape rather than 0 shape so less white will be shown.

Sera wears 22mm eyes with round pupils. They fill out the eyes nicely. 20mm could also work for a more mature look, but it was not my preference.

 

I generally don't use animetics that are not defaults so I can't comment about those.

My HDD-05 has 22mm eyes

I also use 22mm Mine are from coolcat

Thanks. I was planning on buying 18mms, so seeing the 20 and 22 on her was helpful. I think I'll buy 20 instead.