🚀 go-pugleaf

I have a Zenith 386 (16Mhz) running Desqview under qemm (both hardware
and software are a couple of years old).  I recently installed
zenith's disk cache, ZCACHE, and it has produced some dramatic
speedups.  But I'm nervous, because I recall that desqview does some
of it's own buffering.  Also, I've used loadhi for the drivers.

Is this combination safe?

A portion of my config.sys is
DEVICE=C:\DV\QEMM.SYS MAPS=10 RAM NOSORT X=C000-C9FF X=E000-F07F
device=c:\dv\loadhi.sys c:\mouse\mouse.sys
device=c:\dv\loadhi.sys \dos\vdisk.sys 500 /a
device=c:\dv\loadhi.sys \dos\zcache.sys 700 /a
FILES=40
BUFFERS=3

This raises an additional question: the documentation implied /a (use
expanded memory) was safer than extended memory.  Does anyone have
experience or wisdom about using expanded v. extended memory?

Thanks.