Also bear in mind that a wingover should be a positive g manoueuvre all the way; or to coin a phrase,
'A wingover is a positive g pitching and rolling manoueuvre used to convert speed to height, height to speed or to position the aircraft.'
The practical upshot of that is if you have the nose up high, roll on bank and let the nose drop below the horizon so you can complete the manoueuvre with a rolling of 'wings' level and pitching back up to the attitude you want to finish at.
Avoid bunting, not good, especially for teetering heads.