Just tried the -H 1 -i 0 -m 1 -l K14x16 on my 670.  Went up about 50 KH/s on each card.  I do see my CPU went up from around idle to about 50% usage.  Also the accepted lines that I see now read 100%.  Before that would read 99.50% or around that.  (not sure if that is better or not)

On a side note:  Does anyone have a link that explains the readout you get when mining?  Like the lines that scroll. 

And thanks for the update.  Will run now for a while and see how it works!

Sitting with CPU @ 40 KH/s (intel i5) (total of 4 cores)
With my 2 GTX 670, I am at about 550-600 KH/s (using cudaminer)

I have my GPU's running for litecoin, and my CPU doing feather.  

Now I need to get my wife to give me $$ so I can buy a mining rig  

note:  One thing that I find nice, is there really is no slow down on my system doing this at 100%.

On my daughters computer, you can't do anything else when it runs just GPU mining.  She has a old 280.

Started out mining today.  Been going good - I think.  I have a question on the output that I am seeing.

On my GPU readout, I see all the hash numbers, and after about every 1 or 2 lines it reads
 "accepted 599/601<99.67%>, 533.30khash/s <yay!!!>
I am guessing that means that what I worked was accepted by the pool?

But on my CPU, I don't see that very much.  I do see mostly Thread 0: 614664 hashes, 10.49 khash/s
basicly it just moves from Thread 0 to 3 - and just rolls over and over.  It will input on each new set of threads ontop of Stratum detected new block.

(using cudaminer and cpuminer)

Also, can anyone point me to a writeup of what the numbers mean.  Would love to learn more!

Thanks!

edit:  ok, can't seem to add a picture to my post