We never used either,we used to take them out last thing around 11.30pm and settle them down in their cages next to our bed,they used to wake in the early hours,so i used to get up to take them out and then settle them back down,every night we extended the time by 1/2 hour and they went through,as soon as this happened we moved the crates downstairs and used baby monitors.

Our's were trained in about a month