Digital BW, The Print

>  Wouldn't an alternative be to use one of the F-type glossy or
semi-matte papers for color,so 
> avoiding the need to switch an MK channel back over to Glop?  Is it
straight-forward to turn 
> off the Glop channel when printing with these papers on the R1800?

Which are the F-type glossy or semi-matte papers?  Who makes them?  

Sorry, I've been away from the forum for a year and I'm a bit out of
touch.

Thanks,
Chris