Frag help needed

[nport19]

so I am currently to the point were I no longer have space for frags on my live rock. I have been doing some research to see what other methods I could use to put more frags on my reef and I came across a iteam called a frag rock cave. Has anyone had any experience using on of these? Also does anyone know how to cut the ends off the plugs so they look nicer on my reef?

 

[Sabellafella]

I use tile chipper