any ideas if updating my S3 would improve my GH/s vs watts?...

My current measurements are:

Freq   Gh/s   Watts
*********************

100   200   166

150   300   250

200   400   336

218.75   427   350

225   450   389

250   500   450

The watts per GH/s all seems a little on the high side.

l purchased my S3 secondhand and believe it's a first generation model
and has never been updated...  also are there any thoughts about undervolting
the S3. l note from the BM1382 datasheet reducing supply volts by just 0.05v reduces
consumption by 25%+ without affecting the hash rate.