I remember a bloke who came into a fair chunk of money. He went from a two bit player like most of us here, to an overnight 'pro'. using a progressive staking method. His opinion on everything racing including punting methods [in his eyes], was from then on better than anyone else's because he now considered himself a 'pro'.
At the track every week playing with the big boys and betting big bets etc. About 4-6 weeks later he was obviously broke, no longer went to the track and had become a $2 place punter. Don't see him around nowadays.