Just realised that I don't get my nails done because from March to September I'm in the garden...
Chitting sweet peas by nicking the seed case seems incompatible with my sausage fingers and nail varnish (normally not this vane but...). I have always struggled with decent germination of sweet peas hence thinking chitting was a good idea. Soaking in water overnight hasn't helped in the past - do you need to soak on wet tissue paper until they germinate or something?
I should say that I am good at getting most flowers and vegetables to germinate without issue.