Change the WHM access link ???

A friend who is a security expert suggested I change the WHM access link to something more obscure than the standard:
xyz.com/cpanel
xyz.com/whm
xyz.com:2083
cpanel.xyz.com

He tells me there is a new threat out there that can bang on the door of a WHM at the rate of 2k sites a minute looking for access.

I found this one post on the topic here..

http://forums.cpanel.net/f5/change-non-standard-login-controlpanel-method-cpanel-61072.html

I think this is a very good change that can be made to harden the server. Has anyone done this? Is it possible? Practical? Better method to make this happen?