Not trying to steer you away from an "Yixing" pot but I did notice when I ordered my Shimizu Ken kyusu from Hojo (I ordered a 130ml Sado Red Clay Reduction Fired Kyusu) that Hojo stocks a lot of smaller sized pots and his ongoing studies into clay are deep and rich. In fact, this month (June) he is releasing handmade pots/kyusu from a clay that he feels is the best clay of any clay he's yet tested.
On his site there are number of red clay options in a small size. My kyusu from Shimizu Ken arrived in, I believe, four days EMS from Japan to California. It was packaged exceptionally
well and I like the pot very much.
I'm not sure what aesthetic you are going for but there are diverse number of styles and volume capacity pots and kyusu there. (http://hojotea.com/item_e/available.htm
) Have you looked at his site already or ordered from him before? He was amazing throughout the ordering process: returning emails,taking extra pictures of the pot in different light upon request, etc.
Out of curiosity, is there a particular attachment to one shape or another of Yixing pot and are you wanting an 'authentic' Yixing pot (made in Yixing with Yixing clay, etc.) or a pot in "Yixing" style?
I poured again today with the Bero 70ml pot and got even better results, slight water change, different steep times/grams of leaf, and same temp. The pot is really surprising me and easily is outperforming my other genuine Yixing pots. I have a stone pot from Taiwan that performs as well, but with different results. Today I brewed once with a more green Qi Lai Shan (起來山） Taiwan wulong and then with a more amber/oxidized Taiwan high mt. tea. Both were good, but the amber leaf was amazing in the Bero pot. It was one of those moments where all decorum is set aside, time and space disappear, and one is reduced to a set of feverish ahs, slurps, and strange sounds of ecstasy.