As Ray Charles says: "Just a Little Bit of Soule Now."

At most matches I would chase my tail a bit on the sighting in.  My groups are large enough that if a shot is say, left and low, I don't know if that's truly a sighting correction needed or it was just that particular shot out of whack.  It isn't so bad when sighting in the rifle, because I can shoot groups of 3 or 5 rounds and get a good general center.  Where it becomes a problem is during a scored session.  The temptation is always there to react to an off shot and I can end up over-correcting, or even going the wrong way.  What makes this worse is that my rear sight is a bit "wiggly" and I'm always second guessing the repeatability.  It is the cheapest Pedersoli you can get and it just doesn't stand up straight and firm on the spring like it should.  Also, the hinge is a bit floppy side to side. 
So, with money no object, I went and bought a new Lee Shaver Soule style sight.  The mounting holes are exactly the same at 1.52" so it bolted right on.  You can see it here, mounted, next to the old one I removed:

Not only is it nice and rigid, it has threaded windage adjustment (the old one was a simple slider) and a true vernier scale for elevation.  I'm not sure how many people still know how to use a vernier anymore, now that the slide rule is dead.  I won't teach you here.  You can learn on the all-knowing-interweb.  I'll just say it rocks.  Two other nice features are an easy adjustment for tilt of the ladder and an eyepiece with various selectable apertures.
Did it help my scores?  Yeah, a bit.  The biggest change was that any adjustment seemed to have a very direct and proportional change in impact.  This was a new and pleasant experience.  I liked it enough that I added the Lee Shaver site to my links list.

My current cost per shot is $3.29.
Current percent shipping is 8.56%