But now Moo sees it as slower cards due to the increased run-time & start sending me "tiny" 190s WUs.

That's not "tiny", it's the normal WU. The tiny work is now reserved for CPUs and GPUs are using small, normal or huge tasks. :)

I was making some changes and tried boinc v7, but have gone back to 6.x.x

Now I don't seem to be able to do core selection the same way - the list looks a but confusing in the prefs - all I want is to pick #3 core.

Two hour run time is too long considering I was at 6-7 minutes last week.

Edit: think I found the info and settings I needed running benchmarking

Thanx Zydor!

That did the thing
I testing it on a XP box with a single HD5950
With <count>0.5</count> it's running 2 WUs using 99% GPU power
but
HTTP error when Moo request new tasks
now the funny part:
When I stop boinc mgr & change it 1.0 count, restart boinc then it reports the completed tasks without an error & get new work.
I stopped/start changing the setting twice today to get new work
All the WUs passed without an error
Run times / WU is now between 58 and 65 minutes when it is running 2 together
giving me about the same time of 29 - 32 min / WU with a single WU running
I used to get that before the bad WUs started early in Dec.

One change I plan to do in the appinfo is to change the max cpu back to 1 cause
I'm running CAL 11.4 that does not hog the cpu