Titanium - If you have never felt uncomfortable with at least one approach before, your either not a pilot, or have very little experience, or on the off chance a very good pilot that does good approaches every time.
Rule of thumbs: (B737)
25nm 10,000 ft 250kts
10nm 3000' F5
7nm Gear down , F15
4nm F30 Vref+5
This will get you stable by 1000'AGL