Well done mate. Did you get the OWC in the end?
Quick question, do you have boot camp installed and if so can you check ahci and trim are still enabled?
Nope got an apple oem unit from ebay
Trim is still enabled -
APPLE SSD SM512E:
Capacity: 500.28 GB (500,277,790,720 bytes)
Model: APPLE SSD SM512E
Revision: CXM09A1Q
Serial Number: S0VMNYAC808586
Native Command Queuing: Yes
Queue Depth: 32
Removable Media: No
Detachable Drive: No
BSD Name: disk0
Medium Type: Solid State
TRIM Support: Yes
Partition Map Type: GPT (GUID Partition Table)
S.M.A.R.T. status: Verified
Volumes:
disk0s1:
Capacity: 209.7 MB (209,715,200 bytes)
BSD Name: disk0s1
Content: EFI
Macbook Pro:
Capacity: 499.42 GB (499,418,030,080 bytes)
Available: 406.19 GB (406,185,246,720 bytes)
Writable: Yes
File System: Journaled HFS+
BSD Name: disk0s2
Mount Point: /
Content: Apple_HFS
Volume UUID: E0E40F55-656A-370E-A516-6EA3C17AF7A8
Recovery HD:
Capacity: 650 MB (650,006,528 bytes)
BSD Name: disk0s3
Content: Apple_Boot
Volume UUID: 92EF8DF5-4A31-3FC5-B962-27183FC8E948