This article attempts to evaluate the effect of adjusting a single condition, drivers, on overall performance.
Adding patches into the mix introduces an additional variable which is:
1. Unnecessary, since it has nothing to do with how drivers improve performance.
2. Makes it difficult to determine how much performance gain/loss is due to drivers or due to patches. This would put into question any conclusion gained from the experiment (basic scientific method).
3. Exponentially increases the number of test's required, making it unfeasible to carry out.