knhxyy
There was a thread on skids frozen back in December, it might be worth a read.
In brief though, lower tail (as above) or even use a pole as a lever under the skids, anything to ensure that the skids are not stuck before a start.
Also beware that latent heat from the skids may melt ice/snow on landing, only to refreeze in minutes. Never trust that ice or snow even if you have landed for two minutes
and not shut down....