@ gt_addict, did you verify via command line the cgminer version?

Yes, I think an increased HW error rate results in less shares being submitted to the pool, therefore the pool will show you a reduced hash rate.

It could be just a difference in the two machines, but 0.2% error is pretty darn high.  I overclocked my S3+ and its errors were less than 0.1% I'm pretty sure (or was it 0.01%?).

Ah, well that must explain why he's done the kano updates but still thought he had the old cgminer version.  I never checked the version in the gui, I always checked via ssh connection.

Well updated to the latest firmware and then uploaded kanos update aswell and the HW rate has gone from 0.225% down to 0.011% so it must have been the old firmware that was the problem.

I'd definitely say kano.is :

https://bt.irlbtc.com/view/789369.new;topicseen#new

No pool will make you rich with an S3, you can also try solo mining

Like I said I know I won't get rich but any money is free money since I didn't have to buy the gear or pay for power.  That is why I wanted the most bang for my worker.  I setup my rig to go to Kano.  It has the ability to set the frequency up to 300 I only have it at 250 now.  What is the best setting for that?  Thanks again for the suggestion for the pool.

Ok good to know...I will leave it where it is.  It seems pretty stable at that.  I turned it up a little yesterday but didn't know how much of a difference it made so I turned it back down.

I just didn't want to risk damaging it if the rewards were not much better.  According to the dashboard of the s3 my current avg hash was 513

I have had some of my S3+ running on 250 for several month without any issues. They need ~50W more from the PSU.

I run my S3+ at 250 also, it stays solid at 500GH.  Runs really well with kano's updates software package, too.  I will be hosting some gear pretty soon, and when I do I'll bring the S3+ back out because you can just set it and forget it.

If you can see the bestshare it seems like you have the latest cgminer update by Kano inside 

Kanos firmware update basically makes the antminers run smoother and quicker. They don't affect the hashrate but the giu loads quicker, you have a couple of extra options within the menus etc.

The S3 update can be found here:-

https://bitbucket.org/TheKano/cgminer-binaries/src/f5884bfece7a8dfd48550cb172272212459be51c/AntS3/?at=master

Ive got it running on both my S3+'s with no problems at all.