Hi Nighthawk1! Firstly, congratulations on purchasing a wonderful set of Watercolour Brushes! I find that the best way to treat these superior quality brushes is to firstly, when you have finished your painting session, clean them thoroughly in clean water, then carefully rub a little mild soap into the bristles and then thoroughly rinse out again with clean water.
After you've done this, dip the bristles into clean water and then lift the brush out, and this way the brush will retain its fine tip.
If you can't support them by the shaft so that the bristles hang down perpendicularly, then carefully lay them seperately until they're dry.
They can be then stored in a suitable brush case, ensuring that the case has sufficient room so that the bristles are allowed to keep their fine shape.
These brushes will serve you well for many years if you treat them well.
Good luck and very best wishes,
PA & RSC Wigan area