Descent in the hold.
Having approached a beacon at say a MSA of 8,000ft when should the pilot descend to the minimum holding altitude of 3,000ft?
Is it,
1. as soon as you have passed over the beacon the first time, or
2. having passed the beacon the second time in the case of a parallel or off-set entry, ie not established in the hold.
Is it stated anywhere/does it matter?