Why not introduce a "Stop-and-think" point. For example, when you get to within 500 feet of the cloudbase....stop and think....what are my options, why am I pushing on?? Or perhaps at 5km or 3 km visibility, stop and think.....
Many useful ideas here, but perhaps ignoring human nature. Perhaps a bit cynical, but for some, the "anti-authority, invulnerability and macho" attitudes often mentioned in ADM training will likely prevail despite the training. One of my early plank flight instructors told me, "this thing will kill you if you let it." He wasnt trying to scare me but to get me to "stop and think." Worked in this case, but IMHO there are some who will not stop and think no matter what.
Here is a useful review of ADM:
http://www.faa.gov/library/manuals/a...apter%2017.pdf