The MP "Everything Mac" manual states that the 3.5 inch internal hard drive height dimension as 25.4mm. But every 3.5 inch hard drive I have looked at lists a height of 26.1. Will this .7mm prevent me from installing it? I've looked at the OWC site at hitachi, Western Digital Samsung, etc., they all list 26.1. I am interested in the Hitachi drives. Anyone have a comment on these, or a recommendation. Thank you.