Digital BW, The Print

I have the occasional need to print on semi-gloss and am considering 
Lyson inks.  There has been talk of metamerism in the past, with both 
quad black and SG.  I wonder if this has been overcome.

Is anyone out there using either of these inksets with semi-gloss 
papers?  How do they fare for metamerism?  I don't need toning 
ability so either inkset is a possible candidate.

I intend on using the Ilford Smooth Pearl, which has a really nice 
surface and weight.  It's also mega cheap here.  Any thoughts as to 
print life where clients are likely to keep the prints in an album?  

Lyson inks are expensive, so I'd like to jump right in with a CIS on 
an 890, rather than try out first with carts.  

Thanks

K2