Although tea tastes great in my Bizen cups and sake tastes great when using my very ugly Bizen sake set, I have always avoided Bizen kyusu because they're so thick and heavy and also because the holes in the filters tend to be very large. I don't think these qualities are good for sencha. However, after seeing this rather unusual Bizen kyusu posted on the Japanese Hand Crafts website I couldn't resist. The filter had very small holes and the lid was very wide, which makes an easy task out of filling or emptying the tea leaves.
After recieving this kyusu I tried a large leaf sencha I was given as a gift and it tasted great in spite of the rather hefty weight of this piece of teaware. Literally no leaf in the cup and a very easy pour. I next tried the rather light and smaller leaf Tsuen Kirameki from O-Cha and had excellent results as well. This may be the best filter design I have used, although I didn't have any Fukamashi on hand to see if it clogged. The two senchas I brewed in it worked out very well with no clogging.
This is the first Kyusu that is not from the Hokujo kiln that I have used regularly.