I am considering either Addonics quad mSATA PCIe SSD card or Sonnet Tempo/Apricorn Vel card with SSD. I was leaning towards Addonics mSATA card for its ability to dual boot with BootCamp. I read about a larger 1 TB mSATA slowing down with thermal limitation during large data transfers. Is this another theoretical concern or real life concern? For those few of you have Addonics quad mSATA PCIe card, have you experience this problem?