I'm with G SXTY on this one. It all comes down to how comfortable you are with the CRP5. God bless Baz - "put daarn your fu
ing plastic brain"
And thankfully once you have passed Gen Nav you can lay the CRP5 to rest in its leather sleeve. Mr Boeing and Monsieur Airboos have no requirement for you to bring the sodding thing to work when you fly one of their aircraft!