Changes to 40/45 Screens

Hi Pat, Just joined recently and am still going through the archived material for review. Let me say I very much like your approach and in particular your positive, humble and educational attitude. If I noticed correctly, you had changed the 40/45 screens slightly over the past months. In the older videos you included the Top 20 industry groups, while you widened it to the Top 40 lately (at least that's what it says in the Marketsmith screen title now). Is this a structural, permanent change or are you just tactically adjusting to the current market environment, in which it is more difficult to find great setups, and therefore having a broader choice may be beneficial? Thanks very much Michael