In our experience, boats with the 70's style swept keels (C&C 30s etc) tended to nose down on a tide grid, masthead trapeziodal keels (ala Peterson Ganbare etc) are hit and miss but some will balance on the flat keel tip (my brother's Ranger 28 did so). Short J fractional rigged boats likely have the keel so far forward that they will tend to settle at the stern (and onto the rudder!!
The forces are not usually large, just the ultimate imbalance, sometimes countered by as simple an act as removing an outboard from the transom and putting it forward. But it's nice to know beforehand which way you need to provide the extra support.
So as Jackdale suggests, it depends. Also of concern is whether or not the hull itself is sufficiently stiff to resist 'hogging' over the keel and potentially causing some issues in that regard.
Difficult to know until you try it.. unless you know of a sistership that has done so.