Someone said their latest PS90 had a 4 lb trigger pull. I measured mine to yield a 7.5lbf trigger pull. I know there are some self-certified "gun experts" that will say the stock single stage FCG on an AR15 is a 4 lb pull (gauge shows 7-8 lbf). Can anyone verify what the latest PS90s have? Are they still 7-8 lb or are they as low as 4 lb now?