Its amazing how many ppl imc guys do not know or have never recevied training in the NCNG proceedures. remember these guys have to rely on one vac pump for their gyros. as ire/s we like to throw the proceedure at students during the ppl/ir renewal as an extra element if it applies to the ac they operate. its a shame this training is not a required element of the IR groundschool instead of all the toss in the present syllabus