Hi,
thank you so much for your enlightening support. I see that it is really a special science in respect of the Sosho and Hiragana/Hentaigana pp.
By the way, I love the way the brush is used in this kind of writing. When I look into the websites with manuscript scans at Waseda University Library, I see very nice examples of this wonderful style (right in this poetry collection):
http://archive.wul.waseda.ac.jp/kosho/he04/he04_05284/
http://archive.wul.waseda.ac.jp/kosho/he04/he04_00224/
http://archive.wul.waseda.ac.jp/kosho/he04/he04_05299/
http://archive.wul.waseda.ac.jp/kosho/he04/he04_06080/
http://archive.wul.waseda.ac.jp/kosho/he04/he04_08051/
Once again thank you for your support.
Mulan