I'd love to see where this one leads ...any other mac-drivers out there want to comment?

Hmmmm, Tcas climb... 2 years..-219's, you wouldn't happen to be ex-FQ would ya?.............
Just dug the manuals out....the 850lbs increase are for the 217's and variants(217A,217C), and the big guns (219's) you get a 700lbs increase when the ART fires( there's a more technical description available but KISS) for a total of 21,700lbs.