LAST EDITED ON Jul-05-08 AT 09:29AM (MST)[p]LAST EDITED ON Jul-05-08 AT 09:27?AM (MST)
By rotating the eye piece of an angled scope to the side you can maintain a profile similar to a straight scope. Rotating the eye piece completely down, you will have less of a profile. I've read accounts of people setting up their angled scopes behind obstructions like rocks, trees, or ridges such that only the scope was game visible.
The ability to find a target is the biggest factor between the two types of scopes IMHO. Some people just can't get used to target acquisition with an angled scope, it is not intuitive. It took some time before I was completely comfortable with my angled scope. I could see why someone might never get used to an angled scope, especially in the heat of battle.
I've been told there is an extra glass surface in angled scopes. If that is true then theoretically they would be dimmer; some light is lost on every surface transmission (damn those physics!) However, I would be surprised the eye could pick up the difference, considering everything that goes into the brightness equation. I compared straight and angled at the time of purchase, if fact I bought both and later returned the straight, and couldn't tell a difference. This has been brought up in several discussions on other boards and no one has really been able to say either was inferior/superior in practical use.
Most of my time spent spotting is looking uphill. The angled scope has been a godsend for the neck pain and headaches I used to suffer. This is the main reason I've settled on an angled scope.