Howdie,

The lads are right, you need to bet in a higher bracket to get larger profits, your % profit is good !, i personally would either save for a larger bank and invest a LITTLE more, or keep going with what you are doing and slowly build a bank with your winnings,
EG:
Dingo started with 500 units a little over two months ago, betting roughly 1 % of bank, i now average 1000-1300 units TURNOVER per day, 7000 units per week, 28000 per month and 336,000 per year, now thats with starting bets of 4 units per race. Not big time by any means but with a reasonable pot it can be OK.

Dont be in a rush, if it feels right, dont play with it cause it might fall off, and dont fall into the trap of, "its working, time to double the bets (dingo !)" then Mr.Murphy comes along with his big stick!

Definatally try the six point divisor plan, its very smart and saves your bank when MrMurphy does come calling, remember, devise a bank that can handle the run of outs, this is important, this divisor plan does that.

This may help also.
Establish a bank of lets say 1500 units, split this this way"

500 unit betting bank
500 unit spare betting bank (just in case)
500 in term deposit with bank(its there earning something while you dont use it, its there if you do need it to start again) This bank is where your profit goes every week, maybe split the profit and put half in your reserve and half in the bank ?

Just some thoughts


Good luck
Dingo boy