HOW LONG WE MUST WAIT FOR OFFICIAL GUIDE TAG BACK TO GMATCLUB ???

Yea, I thought it would be due to declining sales of their books, but someone needs to tell them straight up that those ridiculously long and useless answer explanations in that book are NOT getting any sensible human through a section in less than 65 minutes. They are so bad!
And, yo! the EP 1,2,3,4 have no official answer explanations so how is one supposed to figure how to solve those questions in under 2 minutes.
And this is a discussion forum, so many people write how they solve these questions, some are helpful, some not so much. So technically it is not plagiarism of any sorts because the credit for the question is given where it is due, nobody is selling the questions as their own. The answer explanations are clearly not what the book says!

Unless, they are thinking about rolling a product line of "how to ace the gmat with reasonable explanation?" I don't see why any of GMAC content would be considered a violation. And, if I remember correctly, the 2017 wiley supported online question bank, half the questions could not support symbols, which I hope they fixed by now. And, their online platform for EPs are slowwwwwwwwww. You can't point fingers at others without being perfect.

And, now you say there is a 40 point error!!! What is that?