Over here in NZ,
The Loop test has just been made mandatory.
I use an Avo-Megger LT7 myself, very handy for finding Socket-Outlets with spread Earth contacts.
Regarding the RCD trip problem, look for a meter with a D-Lok-type function, this prevents the RCD from tripping, I think that Kyoritsu make a tester that has this feature.
I know what you mean, about this problem, my LT7 trips RCD's all the time!.
Also, AS 3000:2000 gives some guidance on installation testing. [Linked Image]