Hi sp09206!
I personally cannot give you any advice with regards to your query... However, a gentleman named Bob Peaslee who frequents the "Brazing & Soldering" section in this forum and is in my opinion, one of the most knowledgeable and helpful experts in brazing today - PERIOD!
I would like to suggest that you post the question in that section because more than likely, you'll get his attention since he participates in that section almost exclusively.
Respectfully,
Henry