Thanks for allowing me to post. I'm familiar with ur flange issues.
Check this out. Been working on getting this product on the market.
www.youtube.com/watch?v=c1JYhsl0Pq4
www.youtube.com/watch?v=t0eHvcnLqAo
or search "C Flange Bracket"
If u kno flanges, plz comment. Thx!