Then there is Mont Marte and they are available here at Fully Booked.
|These are currently available in sizes 0, 2, 4|
I've had these brushes for a while and they have been my go to brushes, I mostly work in quarter sheets (about A3). I use the largest brush to fill the paper quickly and the two smaller size brushes for details.
If you are used to using synthetic or kolinsky brushes it might take some getting used to since these brushes are softer. I found that this softness has its advantages, like you can paint another layer to on top without disturbing the previous wash which is more apparent on cheaper papers.
|The variety of strokes with just the Size 0 brush and my lame attempt at calligraphy :D|
|Brush load comparison with a similar size brush. Rembrandt size 7 kolinsky (left) and Mont Marte size 0 (right).|