Digital BW, The Print

has anyone done any accelerated testing on these two papers?
 i have always printed a swatch with  .... 0%, 25%, 50% and 100% 
patches, cut then in half, and hang it inside (against the glass) my 
window. in a matter of a 1-2 months, some inks and papers went south 
big-time. some didn't. (not very scientific i know)

 i have not had the opportunity to test these two, but i know MSR is 
regarded as at the top of the list.
 if anyone has done any accelerated testing on the two, i'd love to 
hear the results comparing the two especially sine HFAP has the OB's in 
it.

 thanks
 even