Very good reply and thanks for being so patient with me.
I guess the ultimate question might be: Given that the JBD (why are we still talking about diesel tuners on this forum?
) has the track record you mention, does the extra $1220 for the Hartge, Kelleners, etc. really provide that much more added value? Who knows?--that's a tough metric. But, if your wallet permits, and you need to purchase some additional piece of mind, the German tuning boxes are an option. As you say, I'm convinced that these German boxes contain better technology. I just wish I could know for sure!--and I wish the German professionals were here to provide some more light on this story from their end.
Thanks again Mike, and one thing I do know for sure from this conversation is that BMS is one classy company.