If you look at the power receptacle on the G70, you will see that it only has two prongs inside, so if you use a three prong, the third prong does not connect to anything at all in the G70, hence it is functionally identical to a two prong (and MUCH easier to find).
Using a two prong when you should use a three is another matter altogether.........!
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An arranger is just a tool. What matters is what you build with it..!