Splint, at least on the ones I’ve got, they’re thick enough that you can coil excess vac line length and it’s under the project and (mostly) out of the way. 

What I like about the Rockler pods is they are one-sided. Mine are dual sided which means they suck to the bench top as well as to the project. I replaced one of my table tops with melamine so that works ok, but it’s still twice as many opportunities for leaks. The Rockler ones require a hard mount, but that might not be the end of the world. 

Ryan/// ~sigh~ I blew up another bowl. Moke told me "I made the inside bigger than the outside".