I just went with hyperspeed through some tourneys of Annette over at PXF. She actually makes overpushs, but only from late position (SB, Bu, CO and rarely MP3) and really not that often. But as an example: she openpushs 16BBs with 55 on the button vs a SB that is shorter than she is and a BB that has twice her chips. 13BBs with A7o from the CO, 13BBs as well with Q8s on the button etc.
One should note that when between 12 to 20BBs she openfolds hands like AJs, KQs and pairs 55 and lower from UTG. When bigger those hands are in her raising range, when smaller she openpushs them.
This very much reduces the risk of being dominated when shortstacked.
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