RE: Sights
I used a Copper John, Extreme Sniper and a Trophy Ridge at one time or another. For Xmas, I picked up a Spot Hogg Hunter Hogg-it and now I see what everone's been talking about. Unsurpased quality and you can beat this thing with a hammer and not hurt it. I like the fact that everything adjusts with micro adjustment screws and locks down tight. Nothing wimpy about this bugger.
Go check one out in person and compare. You'll see what I mean. Worth every penny.