Less points from chess tactics

rowsweep, try repeating puzzles. Take a set of puzzles (a few hundred to a thousand at a time), and then go through them 7 times (de la Maza's Seven Circles method). This will ingrain those patterns into your long term memory. This is more effective than just doing a bunch of random puzzles with no repetition.
Is it just me or has getting a chess tactic right giving you a lot less points? I remember a few days ago you got 7 points, now just 1 or 2.