Recently I bought a RRA LAR-8 Predator expecting it to have a nice, light two- stage trigger. The pull weight on my trigger is 5 lbs./10 oz. I would like a lighter pull - for me this is fairly heavy. Should I try a cheap-o JP Enterprises light spring kit and polish up the trigger? The next option would by drop a couple hundred on a Giessele trigger and not look back. Is the Giessele trigger that much of an improvement over a RRA two stage trigger to justify the cost?