Hi braille,
I like both Shouzhu variants from Chawangshop a lot. ( Shouzhu is afaik the hand-made version of Fu Cha, meaning the top quality).
This one is very good, it reminds me of medium-roasted Oolongs, very pleasant:
2011 CNNP Hunan Shouzhu (they do offer samples)
This one is my favorite, even though its a bit less acessible: Its lighter fermented, more complex taste, more special character. Less than Oolong, even more than something totally unique. But since the taste and mouth-feel are more special, it might take some more getting used to:
2011 Shaanxi Shouzhu
For the sake of completness: this
2004 Liu An has flowers, too and sounds quite interesting. But I haven't tried it and it is not a Fu Zhuan, but Liu Bao, which is another category and tastes differently. The ones I've tried are much more earthy and similar to Shu-Pu Erh, yet a bit more on the floral side.
Another note: The February edition of Global Tea Hut magazine has quite a lot of info on the yellow flowers as well. Link:
gth.org (see: "past issues")