I've came across some interesting rumor.
From 2/8 to 2/14 SIG Sauer's Custom shop will offer Action Enhancement Package for $120 and round trip "VIP" shipping for $30. They usually go for $169.95 and $55 for round trip shipping.
The Package includes polishing critical surfaces to enhance trigger pull. The offer excludes SP2009, SP2340, SP2022, P226 X5, Mosquito, P238 and P250