[Neus]

Failsafe only prevents traps from activating when you attempt to disarm them, it will still trigger if you don't check/disarm a trap.

As for Disarm, it currently works as a roll; 15 per Rank, Trap Dismantler adds 10. Rolls 1d[whatever the total is], and if it's greater than the trap's level * 10, it disarms it. This probably means that in high level dungeons, you had a very low chance to succeed. I recognize it's a bit lower than intended, so I've changed it to 20% per Disarm, and 20% for Trap Dismantler. So in high level dungeons it should be around 60% success rate per attempt, or 80% with Trap Dismantler.