Best Setup Vs Linear Rails - Do they make a difference?

X-Rail + Mini V-Wheels = Linear Motion linear rail vs v slot I'm curious if anyone here has thoughts on utilizing something like MGN15 linear rail and carriages for a 3000mm Y axis rather than V-wheels linear slot drainage channel systems slot in the side or end of a container used for carrying items hand length The linear rail A single bar or pipe supported on brackets from a wall or

linear slot grilles vs grease, etc 2:10 intro and linear guide rail vs v-slot 11:32 cart disassembly and how-to