Ha! Ha! I agree with both of you!
First - I would have to say emphatically that the "rule" is: use the Progress tools. To not use the tools provided when they will do what's needed is to take a foolhardy risk, in my opinion.
Having said that, however, I also agree fully with Tom: there are situations where the tools just don't do what you want. But if you do go outside the Progress toolset then OF COURSE you have to be damned careful and make certain that everything is done correctly.
I have a once-a-month job to copy a 300GB "warm spare" DB from one environment to another. I can't use procopy because it requires that I truncate the BI, which isn't possible with a warm spare DB. My choices were to take a "norecover" tape backup and restore it (which would have taken FAR longer than what was acceptable) - or cp all the DB extents and then do a prostrct repair. I chose the latter. Works just fine and takes a small fraction of the time. But, the process had to be carefully tested.
Nearly every "rule" has an exception!