My normal sight set up is 10-Precision Rears with orange or green + tritium Ameriglo Proglo front sights. It's basically what the Trijicon HD's developed into (sans the rear viles) but I was using them before the HD's existed and before 10-8 made a Shield specific sight. I love this set up although it is more geared for speed than pinpoint accuracy. I will likely end up with them on this Shield too.

Forum member JLM had posted this excellent pic in another thread.