Nine foot garage walls and Hoist?

Hi Every one, Question who has a garage with say 8,9 10 foot walls and has a hoist/lift that they use regularly? I'm looking at buying a lift for my garage (9 foot wall) and was thinking about a mid lift I know about the blockng of the under side due to the desine but was wondering about the stability factor as I need this to be very safe. Please let me now your thoughts and pics if possible.