so i created a tip from a mypaint brush stroke. and using it i find the result has similar affect as using a mypaint brush.
the tip:
the masked brush uses this weird thing i also made:
https://icedrive.net/s/vAxSFu66TxCx3Aua7VbNuG7g2kDA
what i made fast with it 
bumping flow strength to 100% and adjusting opacity curve creates a decent line art brush too