I had expected that the sharpening requirements would be somewhat different.
Consulting to the photo lab industry is somewhat of a speciality of mine and I've actually performed exhaustive testing on this subject at a number of photo labs and at Noritsu's USA headquarters. (The Fuji machines are just rebranded Noritsu's these days) I've printed a large number of example images, on a variety of printers, a variety of papers, at a variety of resolutions (200-720), using every sharpening combination out of Lightroom.
The universal conclusion is that silver halide printing (on any printer, Durst, Noritsu, Lightjet, LED, CRT, Laser, etc) is always softer than inkjet. "Glossy High" is my recommendation for these labs but we could use something much more aggressive. While Glossy High oversharpens on inkjet devices the results are dramatically more modest on silver halide printers and the final prints are not as sharp as the images when viewed onscreen. Inkjet prints with no sharpening have similar sharpness to silver halide prints with glossy high sharpening unfortunately. Even on Noritsu's HD 720dpi printers. I've also watched a number of customers (photographers and labs) send 100% of their LR work to these machines with Glossy High and the conculsion is always "It's better than no sharpening for sure but I wish we had stronger sharpening options."
It's also worth saying that you got to watch out for double sharpening when testing or printing at labs. images at a Photolabs often go through several steps after you give them your files. They are often managed by workflow software like Labtricity, ROES or DP2 before they are sent to the printer. Each of the steps can potentially include software sharpening and image resizing. Most high quality labs keep these sharpening options off as they can lead to unpredictable and gaudy results. Double sharpening is not a good thing, and if you've ever sheen silver halide prints that you thought were over sharpened, double sharpening was probably happening!
Silver halide is a fairly unique process in that the light is briefly scattered or reflected when it reaches the surface during the exposure. Some of the less expensive papers are quite thin and lead to softer results than some of the higher quality papers that are thicker. Even though the latest printers are 720dpi and some papers use very fine dyes on a thick paper base, the resolving power (resolution) of the combined process is really a good bit lower than anyone would like to admit. I think the sharpening could probably be tailored for it's unique characteristics.
I'd suggest that we could use "Inkjet Glossy" "Inkjet Matte" "Silver Halide" and "Screen" sharpening methods.
In the meantime, I'd say silver halide users shouldn't fret too much over this and should enjoy the unique qualities of silver halide prints, including its gentle, soft qualities. And I think you'll find that "glossy high" is never too sharp, as long as there isn't sharpening being performed elsewhere in the workflow.