Ah Dr so you work on more air instead of a lack of it - didn't know you could do that - come back to us Cessna boys, get weight in your nose, the right number of parts in your tail - and work under lower pressures!
No-one has told me how often I should legally change a dry vac pump in an IFR single. - Bugger it, I'll rely on a sby vac and leave it till it dies, which apparently could be anything between 10 and 10000 hrs. Rediculous things those dry pumps. The advice on brushing up on limited panel seems sensible!