Thanks for all of your thoughts. To those bemoaning my paranoia I say that my paranoia is of the healthy sort. I trust my local process and I trust the exchange I am using, but these processes have risk. I'm not worried about copy/paste issues or exchange fraud. I am worried about program crashes, errors stemming from my own ignorance, and especially things out of one's control after sending, etc. If you read the t's & c's of any exchange they acknowledge this risk and disavow responsibility. Of course the probability is low, but something could happen despite one's best preparation. For anyone working with transactions an individual feels is "high value" some paranoia is warranted IMHO.