I have a question regarding different manufacturers bullet lights. Some bullets like cast or unique use a spring loaded socket that pushes the light to the front of the fixture unless its a Lunar...I believe cast treelighter still uses the spring. Others have the socket mounted at the back of the fixture. I used some Encore fixtures and questioned the rep about different beam spreads and how if the bulb is mounted at the back of the fixture would I be able to achieve the stated beam spreads. He told me it would not make a difference. I look at it as the shotgun effect...am I wrong??? Will a 60deg bulb do its job from the back of the fixture? or will it be restricted by the fixture diameter? I'm not saying anything bad about Encore....Alliance, ABR, Volt all use the same mounting.