Sounds like she needs to mature more mate, whippets can often be slow to mature. I'd recommend reading Hellen Hansell/Hassel's book 'The Working Whippet'. Spend time with the dog getting her recall and retrieving a skin dummy etc spot on, get her heeling on a lead, sitting, staying etc. No point rushing the dog and if she has started to give in mid run, then shes been run on too many things she cant catch yet, and is thinking 'whats the point'. If i was you i would avoid running on game for a while and in a couple of months go and walk up some squatters on the lamp on a really wet and windy ni