The only time I have used a recorder form I was quite pleased with the result... I was playing in the Smithtown regional in NY, we were delayed for the evening session my traffic, and arrived about 1 minute late, where we found our table and were told the boards were shuffled. The first 3 of the 4 boards were normalish, however on the 4th board we had a very interesting situation. I picked up his hand, which was sorted... I didn't pay much attention to it, and bid as normal and passed. My LHO opened 1♦, and after my RHO had shown an Invitational hand w/♦ support (RHO has Axx Ax Axxx xxxx), and my LHO forced to slam with KQx QJ QJTxx KJT. Both red kings were onside, and the AQ♣ were onside. After the board was over, I called the director, and explained the situation. The director (of course) told me to be careful about accusing people of cheating, since he couldn't adjust the result, I asked to fill out a recorder form. We still won the match by 14 IMPs, but it cost us a place overall... I accepted it and moved on. While in DC, a director approached me, and informed me that the recorder had found other information on this person... and action was taken. I haven't had other instances where it seemed a recorder form was necessary, however the only time I used it, it did the job very well. Of course I'm sure this is not always the way things work, since if there is nothing else on record nothing is done, but still... it was somewhat satisfying to know that some action was taken.