keeping it legal – go past Ashridge farm down into Cheddar – thats a fun descent (otherwise go and do the Cheddar Gorge descent), then * pick up the strawberry line to Kings Wood, bridleway along the top and drop down Crook Peak. you will end up riding some road, unless you use the permissive bridleway around Compton Bishop on the southern side of the hill to climb back up. there is a bridleway you can drop back down to cross (nr axbridge then).
I think velvet bottom isn’t good when wet. Don’t mind riding cheeky trails myself when on my own and its dry.
* or go up the Cheddar gorge road and down the bridleway while you are in cheddar.