I recently was able to get a copy of the video "Logging Roads, Lanes and Modifications.". I learned a bit on locations, but the modification section was particularly useful. I got my copy at F & T.

Never saw that one but I'll tell ya if you really wanna get the encyclopedia of trap mods I highly highly highly recommend JC Conners trap nodding dvd.

I looked up Conner's DVD and it looks good. I will order a copy. He has a lot of other good things in his site too

What size traps you working on, Johnny Thorpe had some good idea's on trap moderation.

Mostly #2 & 3 Bridger dogless; though I also have 3 dozen of the original Montgomery #3's that I bought "new" from a trap dealer in the NE US