Are dk wedges the only way to access GPT partitions?

["Thomas Mueller" <mueller23%insightbb.com@localhost>]

Are dkwedges the only way to access GPT partitions under NetBSD?

Linux and FreeBSD have more elegant ways, that can not span a sequence over two 
or more disks as dkwedges can.

I notice in GENERIC kernel config, at least for i386 and amd64,

# Wedge support
options         DKWEDGE_AUTODISCOVER    # Automatically add dk(4) instances
options         DKWEDGE_METHOD_GPT      # Supports GPT partitions as wedges
# The following two options can break /etc/fstab, so handle with care
#options        DKWEDGE_METHOD_BSDLABEL # Support disklabel entries as wedges
#options        DKWEDGE_METHOD_MBR      # Support MBR partitions as wedges

So what happens if I disable this option?  Does GPT disk access work in a more 
normal way, or can something disastrous happen?

Tom