[awave777]

My questions are concerning Sp Authentic By The Letter Cards. Are the letters taken from the team name (for example: 'Los Angeles' and/or 'Dodgers') or the player's name or both? Are they (some of the time or always) serial numbered as a set, or per individual letter variation? I've noticed just by looking at pics online, some cards have letters that aren't in the player's name, and others have letters which aren't in the team name, though it may vary by set?

And for a card like: 2008 SP Authentic USA National Team By the Letter Autographs #SS Stephen Strasburg/105:

I have only seen the 'U' and 'A' variety.-and 'S' versions of other players in the set.
(MANY EXAMPLES OF THOSE TWO; though i'm SURE the 'S' exists-this also seems to confirm that the letter variations are ONLY 'U' 'S' 'A' meaning the entire print run would either be /105, as stated, OR /315)
How are they serial #ed/sorted; could the 'S' variation be an SP within the /105, at least for the Strasburg ?? 105/3 (USA) = a fraction, so is it reasonable to speculate that the varying letters could have had print runs of say, 60, 30, 15?

I mention this card in particular because I see it as the most attractive and undervalued (even at $300) pre-rc Strasburg on the market. anyhow, Thanks for your time and expertise!