Tests were done with stock RaQCop. No IDS, no traffic shaping, no nothing

Regarding flash installs:
on my main system I've got Advanced Proxy, latest version has the possibility to set disk size to 0. This is perfect for running with CF/ramdisk and then adding URLfilter and/or Update Accelerator.
Haven't tried URLfilter but Update Accelerator works just fine (should get a large CF / DOM though

).