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hehehe nice ziggy
That is the main line of the Benko Gambit, the Modern Benoni Defense goes
1. d4Nf62. c4c53. d5 e6 (or d6 or g6) I play e6...
To the original post: At 1600 - 1700 strength, assuming that is an accurate rating for you; you should be much more focused on how to simply hit 2000. GM level play is not even in the ballpark.
A great place to start though :) if you really want to hit GM is my blog.
www.advancedchesstraining.blogspot.com
how to become gm