For a long time the Hakuhodo B214BkSL has sat neglected in my brush roll because, in all honesty, I wasn't sure what to use it for. I know many use it to apply undereye concealer but I always forget to use it for this purpose. I tend to use my fingers or the LMdB concealer brush for this job.
So, I recently decided to give it a try with a highlighter, specifically the Laura Mercier Shimmer Bloc. Ordinarily, I apply this with a fluffy brush which creates a sheer veil of highlighter but the way the B214BkSL picks up the powder produces a much more intense and precise application. I suspect this brush would be great for use with any powders that you feel are too sheer or take a lot of effort to pack on. I wish I'd had this brush when I still owned MAC Belightful pressed powder as I might have had more success with it.
Although I haven't tried it on my eyes, I am tempted to test it out with some of my more tightly packed eyeshadows. I did experiment with a couple of different brushes using the same eyeshadow on a piece of tissue (you can blame the dull weather today for the lack of accompanying image) and this definitely picks up more powder that my paddle shaped lid brushes. I was a little worried that it might feel stratchy on the eye area but it does suggests that it can be used for eyeshadow application on the Hakuhodo website. I will let you know how I get on if I give it a try.
I bought my Hakuhodo B214BkSL before the price increases at the beginning of this year. The B214BkSL costs $26 from the Hakuhodo website and although they do offer international shipping, the value (based on the current exchange rate) is just a shade over the UK VAT waiver so you could incur customs charges to receive it at this end. Boooooo!