For my new longboard the glass is 2x6 oz on top, 1 x 6 oz on bottom. I asked for a Volan deck patch, but the shop said (this is Hawaii, lots of shapers) that Volan is pretty rare these days, they suggested a 6 oz. S glass deck patch. They will do the Volan, it just costs a bit more.
Is there any reason to go one way or the other? Will the board weight be similar either way? How about dent resistance?