Bhags, there is a definite "perception" about staking plans, and there can be a definite advantage to ones mental attitude, but the truth is that all staking plans are really just a series of level stakes sequences. If you disect say after 500 bets you will see that there has been x number of bets @ level 1, x number @ level 2 etc etc etc, now as the S/R of the selections cannot have possibly altered (i.e. the horse doesn't know that it is the 7th bet in a series)
what you are left with eg. 50 bets at level 1, 37 bets at level 2, 30 bets at level 3 etc etc etc , all with the same S/r and average divi, so in fact you ARE betting at level stakes.

To prove it as I've said many times is to just add up the total amount staked over those 500 bets, divide by the number of bets to arrive at an average bet size, then apply that average bet size to all 500 , and you will see exactly the same S/R and average divi,.......... I wish it were different but it isn't.