I appreciate you sharing this, I'm following. I actually don't have miner control running yet though. Out of curiosity which ocl files did you drop in the wepaybtc sgminer directory to get a 20% increase and was that only for your 7750?
Ha, I use the scattergun approach and copied the entire contents of C:\AMD\AMD-Catalyst-Omega-14.12-With-DOTNet45-Win7-64bit\Packages\Drivers\Display\W76A_INF\B178093 after extracting the drivers. With the older 14.6 drivers it was C:\AMD\AMD-Catalyst-14.6-RC2\Packages\Drivers\Display\WB_INF\B173241. Basically search the extracted driver folder for amd_opencl32.dll and grab the folder contents. This seems to work for most, if not all sgminer forks regardless of what card. After you copy in the drivers, delete the *.bin files. Of course I always keep a working backup folder before messing with it.
For the record, I went from having a reported WePayBTC BTC/day of 0.00006 to 0.00019, an increase of 316%.