Gday,

I seem to have about the same strike rate, normally 60-75, normally works out week to week at 70 % which i think is nice !
I do this with my place betting,

1 unit, loss
3 unit next, loss
9 unit, loss
27 unit etc.(1.5 odds needed)
Thing that i found is although it is very agressive (tripple) it pays, and if you are CONSTANTLY getting 65 plus % normally you can be confident enough to do it. but try to limmit the fourth or rarely fith progression to feilds of no more than eight runners to cut down the odds.

What sort of return do you get though, ie av divided, i think thats important.

Cheers
Dingoboy