hero,
Its obviously a waste of time trying to explain all the 'what happens ifs'.
I dont wish to sound offensive, but you have made your mind up that you are right and I see there is little point in me trying to explain your misconceptions about circuitry grounding.
EDIT:
Looking at your posted circuit, I dont see any reason why the scopes +V probe could not be used to measure any part of that circuit.
Its obviously a waste of time trying to explain all the 'what happens ifs'.
I dont wish to sound offensive, but you have made your mind up that you are right and I see there is little point in me trying to explain your misconceptions about circuitry grounding.
EDIT:
Looking at your posted circuit, I dont see any reason why the scopes +V probe could not be used to measure any part of that circuit.
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