Anyone with an SKS should know about Tom Prince a/k/a Kivarri. http://www.kivaari.com/

I recently bought an SKS that had a trigger that was long, creepy and dangerous. The rifle would sometimes fire if bumped. Thankfully I found this out while it was unloaded. After reading good reviews I sent my trigger group off. The difference between what I sent and what I got back was night and day. I now have a safe trigger that is crisp and predictable. If you need your SKS trigger worked on send it to Tom. His work is outstanding.