The mental approach to bowling for me is key. It took me a few years to realise it. There were times when I would practice on my own or in the club nets, bowl some tripe and slide down an increasingly slippery slope. The cliches you often hear from sports people about emptying the mind, focus and taking the positives are cliches for a good reason. I've read a few good books on the subject and even Philpott covers it quite well and stresses the importance of mental practice. I'm no Shane Warne, but I'm certainly, without doubt a better bowler because of it.