Last night I did quite well in getting Trifectas after scoring on my 1st effort.
The nature of this Form of betting is Few collects.
I was fortunate later in the night when I scored one that returned me over a $100.
I don't know yet if it was luck or skill.
I do know that Sportz often reminded me that the Trifecta was there amongst my selections but I didn't manage to get it because of poor betting practises.

The nature of greyhound racing is that it is so easy for a Greyhound that can't possibly lose on Form, manages to run unplaced due to getting smashed during the race.
I've seen just as many incidents in a 5 dog field as well.
Its just part of Racing.

Bendigo Race 8

One that I'm not familiar with has ended up on top
ANSTEY CLOSE has had 5 starts here for 2 wins and close up 4th and 5th in very good times.
Box draw is a Big worry though.
SALVADOR has an excellent record here as has RONCHI, who was my Original selection mainly because it runs in town.

5 ANSTEY CLOSE $3.1
4 SALVADOR $3.7
3 RONCHI $8
7 ELITE LAW $12
1 GOLDEN PATCH $13.5
6 ESKIMO MAGGIE $14
8 FROSTY HEART $25
9 GO TO AFRICA $50

Looking at these prices, it seems the top 2 are the ones to have as the winner.
And then have perhaps RONCHI for 2nd and the next 3 dogs for 3rd.
That would send me over the $6 Limit
If then it was 2 dogs for 3rd, then that would be the $6
But I feel that unless the top selection is Rated at Odds on, then it is preferable to have less dogs running for you, but with more selections in the win Line.

TRIFECTAS
3,4,5
3,4,5
3,4,5,7