One small rule to try & keep in mind when using multiple systems .

Try not to double up on a system selection if the same horse is selected 2 or more times by 2 or more different systems.

Otherwise we are making the assumption, that the horse has twice the chance of winning , which, in most cases they haven't.

One suggestion for money management is to bet 1/200th of your bank.
Adjusted up or down at the beginning of each new day.
This is ideal for multi system betting.
This will keep ones bets in perspective to bank available without have to worry about heart attacks down the line.

The 1:200 ratio is done this way, to smooth out the volatile, percentage up & down swings, this plan can have, if working to a lower ratio.

With any sort of win only betting, there will be times where 20 outs in a row will happen, but that's just part of the process of punting & using above staking plan will keep things in balance and make a punter bet with a lot more confidence because the "what if" question, has been addressed.

This "what if" question is the No.1 reason why punters lose lots of money, because they fail to address this question at the beginning of their punting activities.

The 20 outs part of punting, is where most progressive staking plans get ripped apart.
More money is lost using progressive staking plans than any selection plan ever did, so be prepared if progression's are being used.

With your system selections, a suggestion that can work well...
.Win only if paying $7.90 & less.

.Place only if paying $8.00+
an alternative to this is to bet 1w x 6plc on these $8.00 shots.

This 1x6 ratio is worked out by dividing the amount of race outlay by a 7th for the win part , then multiply the 7th x 6 for the place component.
Example.
$11 to be bet on this next race.
7th of $11.00 = 1.57 win bet
1.57x6 = 9.42 plc bet

These fractional amounts can be done on Betfair if using BetTraderPro betting application tool. (Free) or similar other tools which cost money but can well worth it .

Once one starts using Betfair , one will wonder why anyone bets with the TAB when the prices are nearly always less than Betfair.

Cheers.

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Cheers.