Of course, if meters cause a 'step back', then you could always use a little device from Trix: Part number 66623, track tester. Basically, it's a 18 volt bulb in a holder with two contacts at the base. Simply put the contacts across the rails - bulb lights = track live, no light = no power!
Works on DC, AC and DCC systems and all gauges from 00/H0 to T!
HTH
BTW - it will only give a Go - No Go indication, of course, although from the brightness of the bulb, you could deduce things like poor connections.