In theory, same node with same potential, and a 0V voltage source should provide the same potential when used to split the node. Additionally, I utilize a 0V voltage source for current measurement, particularly for sub-circuits. However, through observation, I have found that using a 0V voltage source for current monitoring is preferable over employing a small resistor. In extreme cases, a current monitor implemented with a small resistor can introduce unstable current readback, possibly relates to precision in math.
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