FDB
I tend for option 2. It will give you an idea of how much (or how little) accumulator pressure you have. Add onto that a check that the pedals have lost pressure immediately (AS350 and BA) once you press the HYD TEST switch. Move the cyclic around but you don't have to be very aggressive with it. Remember that you are just bleeding the accumulators. The Starflex can handle these small ground movements.
The accumulators are there to allow the pilot to bring the aircraft back to a more manageable configuration (airspeed) before complete HYD loss is felt. If you achieve this manageable configuration before the accumulators give out, the HYD isolate switch should be activated to allow a more uniform loss of pressure accross all the accumulators (ie. prevent a hardover in one axis).
My thoughts only.