I downgraded to a 13" MBP last week. I had previously been using a 15" MBP with a 256GB Samsung 830 in the HDD bay and the stock 500GB HDD in the optical bay. I had TRIM enabled via groths TrimEnabler and everything worked perfectly. I used this set up for about 6 months with no issues. Fast forward to now; I swapped the same SSD and HDD into the 13" last week. I installed a fresh copy of Mountain Lion via USB and enabled TRIM once again via groths TrimEnabler. Everything seemed to be working fine. I was getting like 11 second boots, 400mb/s reads, etc. Life was good. Then out of nowhere things started getting weird. My machine is still snappy as hell and Mountain Lion is running like a champ -- after the MBP boots. The boot process itself takes between 15-20 minutes. I have to sit and stare at the white Apple screen with the spinning circle under it for that entire time. Any idea what is causing this? I've tried verifying and repairing permissions, verifying and repairing the disk itself, verifying the S.M.A.R.T. status in Onyx. Everything says the drive is perfectly fine, and it's certainly performing fine. My machine just takes forever to boot up. Anyone know how to rectify this?