I recently purchased my first all-solid wood acoustic - spruce top, mahogany sides/back. Not a collector guitar, but very nice nonetheless. It is a lovely grand auditorium model with no pick guard. I am a strummer/flat picker and I was thinking of adding a pick guard so I don't carve my new baby up.
However, since my dna is programmed to overanalyze everything, it got me thinking about tone. By adding a pick guard to this smaller body acoustic, will it adversely effect tone by cutting down on precious vibes? Many a high quality acoustic has a pick guard installed at the factory, which leads me to believe I am fretting over nothing (pun-intended), but any thoughts would be much appreciated. Also, should I consider what material the pick guard is made of, thickness, etc?