Bout time you figured something out. I posted something similar a while back about doing this. Iwas at 13 MB and dropped to 11 MB doing the same exact thing. Then I did a couple quests and tried it again...went from 11 MB to 12 so I gave up on the idea completely. Could you post ALL the specs of your SSD? Capacity, buffer size/cache, etc?
Last time I did this it added 5MB instead of subtracting. Don't ask me on that one...made no sence then, less now.
My drive is a Kingston HyperX SH100S3/120G...the specs according to Kingston's data sheet are:
Form factor: 2.5"
Controller SandForce? SF-2281
Components: Intel? 25nm Compute Quality MLC NAND (5k P/E Cycles)
Interface: SATA Rev 3.0 (6Gb/s), SATA Rev 2.0 (3Gb/s)
Sequential Reads: 6Gb/s3 555MB/s
Sequential Writes: 6Gb/s 510MB/s
Sustained Random 4K R/W: 20,000/60,000 IOPS
Max Random 4K R/W4: 120GB – 95,000/70,000 IOPS
PCMARK? Vantage HDD Suite Score: 81,196
Supports: S.M.A.R.T., TRIM, and Garbage Collection
Power Consumption: 120GB: 0.455 W (TYP) Idle / 1.6 W (TYP) Read / 2.0 W (TYP) Write
Dimensions: 69.85mm x 100mm x 9.5mm
Weight: 94g
Operating temperatures: 0°C ~ 70°C
Storage temperatures: -40°C ~ 85°C
Shock Resistance: 1500G (Really important for when I kick my PS3 across the room)
Vibration operating: 2.17G (Really important post kick and while bouncing)
Vibration non-operating: 20G
MTBF: 1,000,000 Hrs
That is all I got. If you want anything else, google knows all. SATAIII is kind of a waste on a PS3 I guess, but oh well.