Just got a new G27 and I love it. The only thing I really MUST do is put some tritium sights on it. It's been ages since I've done any of this so, I'm asking for opinions: What is the best, most reliable, most rugged set of tritium sights I can put on my G27? I've looked around and seen the adverts and like most every other product in existence, everyone claims theirs is the best. So, which one really is? I'm not too worried about the cost. I've seen some from $75 on up to about $120. That range is fine for me. Opinions please.