Just imagine for a moment if you will...
I turn a bowl, a nice solid curved funnel shaped bowl.
Then before I finish it, I take it to the table saw, and with a well thought out jig, I proceed to cut slits in it....
I would set the jig so the piece remained stationary and just raise the blade into the work to cut the slit. Just rotate the piece in the jig and cut another slit kinda thing.
I'll have to find a piece of scrap to play with on this idea....