i borrowed it from the library, worked awsomly great....untill they stayed at my mums! i gave her a run down of how it works and she saw me using it on them, but some how abused the way it works, so had to stop using it, im thinking of starting again its been awhile hopefully it will work a seccond time!

yeah consistant and it works, make sure anyone else watching them knows and understands how it works or they could stuff it for you.