As part of survey to purchase 2004 Hunter 33-2, able to push firmly on side of 4'-6" shoal keel with foot when boat on slings and moves ~+/-2". No cracks anywhere on external keel surface or hull joint which appears solid. Hull absorbs movement. There is crack in one bilge section (pic attached) but did not observe that concurrently so don't know if it was flexing there. Anybody know if this amount of deflection is "typical" or excessive? Unable to find any "specs". Anyone else witness this?