If you look closely at the photo below you will see Ian Kelly wearing crampons on frozen grass on a wonderful mountain Suiliven in the North West of Scotland. A lot of people are amazed that I show this photo, at times frozen grass can be more treacherous than hard frozen snow.
As with any use of crampons one must get used to them in various conditions and I have used them in various searches and rescues especially early on in the winter when the grass is frozen. It is always worth checking the crampons at the start of the winter and putting them on your boots in a friendly place not for the first time in a raging storm on an icy plateau. Spend a bit of time every year getting to know your tools ice axe and crampons and I would advise always to wear a helmet when your crampons are on. A good mantra is crampons on helmet on not like the photo above!
Always take time to practice on a safe piece of ground with a good run out – no boulders or crags. Simple skills like walking on flat ice are essential to get novices to be aware of the dangers of tripping or catching clothes on the many points, Build up to a steeper angle and practise the use of the axe, cutting steps, breaking, walking on steep ground etc. Always wear a helmet, these skills need a practise every year no matter how experienced you are. It may save your life or the life of your companion or friend.