QTR-Quadtone RIP

I'm new to the group also!

The issue I'm having is with reading the "Ink Pattern Page" with my densitometer 
(Spyder3Print); is that each patch or square is so small it is hard to tell if I have the sensor 
directly in the center or overlapping into the next square.  The instructions were very adamant about not resizing or changing the inkseparation.psd file in anyway, although I've 
done this when printing targets for developing color profiles, which ColorData says is ok.

Is there a larger "Ink Pattern Page" out there that would make reading the "patches" much 
easier?  Seems that reading the 21-step patterns is the only way to linearize custom curves.  
I know that you can use a scanner to set your ink limits with, but I see no way to linearize 
using a scanner; if so what is the procedure?

I'm going to try painting, just around the outside tip of my densitometer with some 
"whiteout" which should make it much easier to see the placement of the densitometer 
sensor directly over the squares, particularly the dark ones, which are especially hard to see.

Thanks,
Randy