Usually wheels can be of several types:
1. Balanced (the most effective, you only use certain combinations that have the highest probabilities of winning)
2. Extended wheels (these are the wheels with all the possible combinations, regardless of balances, i.e. number of high vs. low numbers, odd vs. even, etc...)
The numbers use for the wheels must be adjusted for the most recent lottery draws. If you use a wheel based on current numbers that is an "active" wheel, if you use just the numbers according to any other criteria (put some odds here, some highs over there, etc...) that is a "passive" wheel. In my opinion, passive wheels are "static," they don't evolve with the lottery draws...
So for example, if the combination 1-2-3-4-5-6 have never come out in your lottery, and you made your wheels with that consideration, and suddenly 1-2-3-4-5-6 (or any other 6 consecutive number combination) came out. The chances of another one appearing in the near future are nil. A passive or static wheel, would not be able to deal with it.
But that's just me, for some people the odds of winning the lottery are so high, that any system is a major improvement, and wheels are among the most popular systems.
Good luck.