Spot The Lay

Sam has asked me to take a look at this laying system which appears to be pretty simple and straight forward.
What I like about it is that the max we are going to lay at is 4.2, nice and low.
If it can acheive an 80%+ success rate then we are in business, lets hope it does.
There are days when there are no lays and today is one of them, so I will start it tomorrow as day 1 of the trial.
There is also a staking plan which I will operate I will use a £1000 bank and start off at £10.
The max lay stake will be £20 using the staking plan as it goes from £10, £15, £20.
The author doesnt say when to lay but does indicate close to the off, so I will use a bot to lay at around 30secs before the race, just in case I cant see the live market myself.