i think the meaning of that phrase is that the change in GS is not drastic, not that it counts past weeks
No, that IS what it means.
There is an element of random to GS, and there haven't been any changes made recently.
 
                                
                                
                                
                                
                                
                                
                                    NO ONE at this table ordered a rum & Coke 
 Charles: Penn has some good people 
 A CT? Really? 
 Any two will do 
 Any three for me 
 Any four will score 
 Any five are live