Ah, the British habit of understatment <img src="/images/graemlins/laugh.gif" alt="" />

How in the heck did this thread get off track?!?!

Anyway, Yes I typically have a filter or dedicated red, green or blue light. I prefer Green or Blue because it is easier to read maps with and causes less eye strain while maintaining NV.
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"Trust in God --and press-check. You cannot ignore danger and call it faith." -Duke