If you have never tried Squirrel quill brushes before, I encourage you to get one and try. I mostly work on wet on wet washes so ever since I've experienced these brushes, they have been my tool of choice. A true squirrel quill is a bit pricey and hard to get hold of, unless, you have a friend going abroad, a relative or traveling yourself. Then there is Mont Marte and they are available here at Fully Booked.