It is normal that punters are confused which horse racing betting system should they choose to stick to. Actually having more than two systems might not be as difficult as it may sound, as long as you can manage them all.
Needless to say, every system needs test.
You do not know whether a system will work or not until you test it. Often you are advised to test a particular system without placing real money as a bet. A paper and a pen are only materials that is required or may be a spread sheet, choose one of which you find it easier to work with.
The Lay System, for instance, is uncomplicated and simple, which by the way I do not know what should I name the system:
I implement this system on handicap or non-handicap race, in which there is more than thirteen runners.
The runner is chosen according to the previous performance in its last race. The runner must not have won its last race, the best selection according to my test should be the in the third rank or up.
It must have the shortest price, which means it is a forecast favourite, and finally it can not have the highest selection box figure.
It is simple to implement and to test. Although this horse racing betting system does not profit every year, it should be working well overall. Some punters might be having trouble to discover their systems because they could be separating their focus and try too many system at a time, even worse, they test it with real money. It should not be practiced.
Another aspect is that they are not patient enough and try to find more system while they are testing one or two systems. Finding more system really drains a lot of time, not to mention the research you have to do. Although, there are many readily made systems sold on the net, you should be careful as you know that they might be scams.