VFR navigtion
LEVC
As someone who's learned their lesson regarding "sloppy" posting, I'd suggest you really should be sure of your facts before hitting the submit button. It's easy to try and present opinion as fact or law unless you're careful.
CAA guides and safety leaflets, even LASORS are not the law, they are either the CAA's recommendations, guidance and advice or their opinion or interpretation. The law is what's in the ANO, and there's simply nothing in the rules of the air, visual flight rules, to back up your assertations regarding the use of GPS and other radio aids for navigating while VFR.