How reliable is Forum CSAT key?

I am scoring in between 70-80 in other coaching CSAT answer keys. However I see a quantum jump while matching with Forum Answer Key.

What do people think about the key?

Which questions do you think are debatable?

I am no knight. Do not call me Sir

@Neyawn RC: Modern statesman, Environmental problem cause health problems, Household finance

Quant+Reasoning: 75 party people.

3 "renowned" coaching have given different answers to the above mentioned questions.

PS: I just hope Forum key comes out to be true, as I am qualifying with a good margin with Forum key, xD

user_112610

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@Neyawn In GS I Set A Q54 - Don't we use a gyroscope for determining the rotation of mobile devices?

Matt7,