I gain/lose less rating points from puzzles

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Chop1n

So this has been happening for around 3-4 months, where I receive 8-9 points for getting a puzzle right (at 90%+), and lose 8-9 points for getting the puzzle wrong. I used to gain/lose 16 points if I was correct or not, does anyone know why? I'd like to go back to the original 16 points.

notmtwain

This topic is discussed ad nausea in: 

http://www.chess.com/forum/view/help-support/tactics-trainer-problem-difficulty