Riddle me this:  
Regarding the glow light test.  Based upon this pic: 
 
would you say there are 4 glow back variations?  
Also, for you 1991 topps variation collectors - do you all consider the pink # variation a true collectible variation?  
 
Also, does anyone out there have either of the 2 cansecos (regular and all star versions) that don't glow ... or glow and have the lighter cardboard background?