Much more manageable weakness than Cover Up. Yes, it can hurt multiple times during the scenario, but playing Roland, one should account for horror damage anyway and with cheap allies(Art Student, horror healing (Logical Reasoning and other horror soaks it is not that bad. I'm going to use this weakness by default along with complementary signature card - Mysteries Remain.
Roland Banks deck only. Replacement.
Revelation - Place 2 of your clues on your location. If you cannot, place all of your clues on your location, take 1 horror, and shuffle The Dirge of Reason back into your deck.
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.
One of the "shuffle this back into your deck" signature weaknesses. Looking at the two elements, the effect and the discard condition, we get:
The effect: Put 2 of Roland's clues on his location. If you don't have 2 clues, place what you can, take 1 horror, and shuffle the back into your deck to dirge you again. Obviously, this is no fun, but Roland generally doesn't mind dropping clues, since can scoop them up again by Investigate or Fight actions. The "horror and reshuffle" is pretty nasty to Roland with his sad 5 Sanity, but, if you are running Roland, you should be packing horror healing (e.g. Logical Reasoning or Hallowed Mirror), so you should have answers, but getting defeated by horror is a credible threat, especially if you can't or won't hoard clues. This is definitely a lighter weakness than Cover Up, in that it can only possibly give you 1 mental trauma, but it does have a weird synergy with Roland's "box" signature weakness, so he may be the best investigator to run both sets of signatures.
For those who don't read the comments: Dirge can't take clues off of Cover Up, since they aren't "Roland's Clues." It can, however, get unspent clues off of Roland, so he can Investigate to get them, clearing Cover Up in the process. It's pretty inefficient (it could take 5+ actions with a bad hand and bad luck), but it beats the pants off a mental trauma or two....
The discard condition: Have 2 clues when you draw this, otherwise you get hurt, and it shuffles back in your deck.
All in all, this is an average signature weakness, maybe above average if you are in a horror-heavy campaign like Carcosa.
Box vs book If you are afraid of Trauma, stick with the "book" signature set, but, if you a e more daring, the "book" set actually helps with the problems of the "box" signatures, so maybe take both.