I think all pastrami recipes I know of are using the flat. If Dave is using the point, then that's a change, but he does great stuff.
I'm not sure I've seen any points corned, around here, it's always the flat.
Shoot, go for it, have some fun.
And like Wheelz said, do a search.
I found over 200 hits for "pastrami" but check out this link (it's multiple pages and lots of info:
http://forum.cookshack.com/eve...883/m/6041042474/p/1