
This has been updated to match my "Signature Weakness Project." I have done my best to make sure that the original content isn't altered too much, out of respect for any comments.
Everyone seems to think that this is a really bad weakness, and everyone is right. Looking at the two elements, the effect and the discard condition, we get:
The effect: Roland needs to discover 3 extra clues at a location that has clues. This seems fairly easy, since Roland is pretty good at getting clues with his off-class access and special ability, plus cards like Evidence! and Scene of the Crime. So it's handleable, if it goes down early, and the fact that any investigator can trigger the action, and a dedicated clue-getter can clear this tout de suite (as someone more Francophonic than Roland might say), but, if it goes down late or in a scenario where there aren't clues in the normal way or after they've been discovered, Roland is in for a world of trauma. Roland can hedge his bets by reserving a clue until the last moment and using cards like Dr. William T. Maleson and Forewarned to get it back on a location, lessening that late-scenario "clue desert" problem. Remember that, if Roland gets defeated with this thing out, he gets 2 trauma for his pains. And with a low starting Sanity, this weakness can be campaign-ending.
The discard condition: Discover an extra 3 clues from a location with at least 1 clue. At least it stays in your threat area, so it's a once per scenario problem.
All in all, this is a way above average signature weakness.
Box vs book You need to ask yourself if the pretty pistol is worth the pain of this card. If no, consider the "book" signatures, which are less nice but also less awful. If yes, maybe use the "box" set or both for some extra Roland-ness.