umrum - when I am investing for the place I will often utilise a 3,4 or 5 all-up or parlay to maximise my returns. Remember, that each new bet starts off another sequence so a run of 8 successful place-getters(which is not uncommon with a bit of care and vigilance) will return four completed sequences...12345,23456,34567, 45678 etc.
It seems that you have a good insight into how this conservative approach can return good percentage divs. Remember that dutch-betting can also apply to quinellas, exactas and trifectas and flexi-betting has made this a lot easier. Good luck to you!
the freek-yes, I bet everyday so obviously employ a relatively conservative approach to my wagering. For the observant punter there are many opportunities to secure "overs" whether they be by way of win, place-betting, or percentage wagering on the exotics. In relation to turnover I definitely do not chase losses but employ methods similar to other forum contributors who minimise their exposure to huge losses on any particular day. As I have stated previously, I invest in "units" and increase the size of my units when I am on a winning streak-similarly, if I am an on a losing sequence I will adjust the value of my units accordingly to a percentage of my "bank," as outlined by other contributors - at all times retaining control over my wagering and having a predetermined plan to minimise losses if that happens.
Let's face it, some days photo finishes go against us and cost us plenty.
The number of bets I have each day depends purely on how things are going, 8 -10 perhaps but if I see opportunities at the trots in the evening I will bet on and I may end up having 15 -16 bets. Definitely not in the league of Australia's biggest punter who reportedly has a turnover > $100MIL p.a. and again, reportedly, is content to reap a POT of between 2-5% yet I feel these figures may be somewhat unreliable.
With respect to place-betting I have wagered on a runner paying $3.5wand $2.4pl yet by post-time it has shortened to $2.8w and $1.2pl but that's the way it goes. The name of the game in punting is to be a "survivor" and even if the final dividend is a bit "skinny" you have retained your funds to reinvest on the next possibility.

Cheers.