Foil X-ray mirrors, introduced by the Goddard X-ray Group in the late 1970s, were envisioned as an interim
and complementary approach toward increased sensitivity for small inexpensive astronomical instruments. The
extreme light weight nature of these mirrors dovetailed beautifully with Japan's small payload missions, leading
to several collaborative, earth orbiting observatories, designed primarily for spectroscopy, of which SUZAKU is
still in earth orbit. ASTRO-H is the latest joint instrument with Japan, presently in the implementation phase.
At Goddard, some 30 years after we introduced them, we are involved with four separate flight instruments utilizing
foil X-ray mirrors, a good indication that this technology is here to stay. Nevertheless, an improved spatial
resolution will be the most welcomed development by all. The task of preparing upwards of 1000 reflectors, then
assembling them into a single mirror with arcmin resolution remains a formidable one. Many, performance limiting
approximations become necessary when converting commercial aluminum sheets into 8 quadrant segments,
each with ~200 nested conical, ~4Å surface reflectors, which are then assembled into a single mirror. In this
paper we will dscribe the mirror we are presently involved with, slated for the Goddard high resolution imaging
X-ray spectrometer (SXS) onboard ASTRO-H. Improved spatial resolution will be an important enhancement to
the science objectives from this instrument. We are accordingly pursuing and will briefly describe in this paper
several design and reflector assembly modifications, aimed toward that goal.