Yeah after watching the video I realized I messed up by saying putting the extension on 3401, now I have another reason to get the PE14.
Just used the 3401 with CCS pads on a 2010 SS camaro and love it! Great book by the way!!!!
Heading out in a few to go start on that boat, will be taking lots of before and afters. Will post when completed, thanks for your help, appreciate ya!