OBSOLETE: Please use the new Readout Mode Control Test Kit!
I've put together a kit that enables you to control your camera's readout mode from within an ACP observing plan. It also allows you to set a separate (e.g. fast) readout mode for pointing exposures. The intent is to allow RBI pre-flash for photometry applications, but you could just install it for the fast readout on pointing and not use the per-target readout mode feature.
Attached is a zip file with a ReadMe file that contains instructions. Enjoy!