Digital BW, The Print

Hi all,

I've been reading this site and other for over 6 months now. I have 
done extensive research in color printing and calibration/ profiling 
on the Canon, HP and Epson printers. 

At the same time I started reading about B&W printing since in my 
opinion I can't get a descent B&W print from color printers - it 
needs to be a quad system. 

I've been told that MIS offers quality for a low price. The B&W 
printing research has made my head spin more than once! I've been 
looking into MIS and Piezo. I'm willing to start with the MIS, with a 
1160 or 1280 and ultratone inks, and have the following questions for 
you:

1 - Is there any difference on using the 1280 over the 1160? Is it 
better to use the 6 bottles over the 4 bottles. I will be using the 
printer for B&W only, so a 4 color printer would be cheaper, but I 
would like the best quality. Will one perform better than the other? 
Less clogging? How long can I go between prints?

2 - Has anyone used both Piezo and MIS? I like the selenuim, but not 
sure it's worth the extra cost. I wonder if Piezo not being variable 
tone that the prints will be more consistent over time. I read here 
one of Roark's curves gives the selenium feeling, do you think it's 
compatible?

3 - On the Piezo forum people use a lot Hahnemuhle and photorag, but 
here mor of the Epson papers. Can MIS print on those papers, is it 
better? Maybe more expenive?

4 - Roark's workflow does not use a RIP. If I buy the 1160 or 1280 
with ultratones, will I get consistent prints? If 5 years from now I 
decide to print the image again (new PS, inks, printer, etc...), can 
I get the same result?

5 - If I need a print larger than 13" wide, do you know of any 
commercial service to ship this to that uses the same MIS-UT inks?

6 - Longevity is important to me - is UT the best option?

Your input is greatly appreciated!

Thanks, Alfred