I, too, experienced problems with the SM i threw. read the midlane decently, but nothing all that special. it didn't give me much recovery room either. at the pins it was a bag of marshmallows. had lots of trouble kicking out the corners.
the NVD, on the other hand, is a monster. lots of power throughout the whole lane. i haven't met one person who has said negative things about it yet.
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to the pits!