Mining with radeon hd6970 and r9 270x

Hey this is my first forum post ever so forgive me if I leave anything out. Anyways I am having trouble coming up with scrypt for bfgminer to run my r9 270x and radeon 6970. Here is a line of scrypt I am able to use for my 6970 (bfgminer --scrypt -o stratum+tcp://doge.hash-to-coins.com:3337 -u jkrout.1 -p 1 --thread-concurrency 12128 --vectors 1 --gpu-threads 1 --gpu-engine 910 --gpu-memclock 1250) but I cannot get one working for my new r9 270x and the 6970. Here is an example of a cgminer line of scrypt I'd like to incorporate into my bfgminer srcypt (--no-submit-stale -I 19 -g 1 --thread-concurrency 16000 --lookup-gap 0 -w 256 --gpu-engine 1100 --gpu-memclock 1465 --gpu-powertune 2). I also understand that you can use commas to add more for a different gpu but am still at a loss. I have minimal understanding of scrypt and currently mining with both cards set on auto and I manually set the Intensity to 18 and 16.