has anyone tried a system called supertab!!

Yes - it works in exactly the same way as the NSWTAB and UNITAB systems that you may be familiar with! A bit tricky - most people seem to lose 15%-100% of their turnover but a very small number of people do make a profit (less than 10% of users make any profit and only a few percent make a decent amount). So if you are going to use the system make sure you try it out on paper first as it's not as easy as it seems to make it work. :grin:

the supertab i've heard of is a betting
system in qld,has anyone tried this system!!

In that case I've never heard of them and am sure they will be promptly shut down or forced to change their name if Tabcorp ever hears of them!