Platimum4,
Can you please put the config file used for 290X? I want to mine X11 I read that your Hashrate is 5.4XX .. Is it ok to use the new miner with different pool ?
For what it's worth, I also get slightly over 5.4 Mhash (21.74 across 4 290X's to be precise) with the following X11 configuration:
Engine 1010
Memory 1250
xintensity 360 (I19 would be equal to 186, and I20 would be equal to 372 in xintensity)
powertune 15
worksize 64
I don't have shaders listed but a thread concurrency of 24577.
Threads 1
(I see from the example above that X13 should be able to run with no significant changes in configuration apart from calling out the correct kernel. I'll have to start fresh and give it another go...)