Every system uses level stakes and all use the same amount. When you bet big you don't get as much choice with fancy staking plans.Level profit works and while it has its drawbacks it is safest at this level of betting.

I profit on a races/sports every few minutes as I bet 24/7/365 across multiple codes (horse, greys, harness, soccer, rugby, tennis, baseball, basketball, etc). I always find Christmas day and good Friday interesting days. I use those days for offsite backups and maintenance activities as there is very little action on those two days (some football games on christmas day).

My goal is to become a 1 billion turnover per year punter. I see no reason I can not achieve this within the next couple of years considering I am already near $300 million per year. It has become more difficult now though as I can hit liquidity problems with some markets so I can't just increase my bet size and get matched so I need to find more systems, look at more sports, etc.