One thing I'd consider adding to the instructions would be that for boot looping phones you'll need to hold down the up key on the physical keyboard before powering on in order to get to the boot loader. Otherwise your computer and also RSD Lite will not recognize you've connected your phone.
Also, for semi-bricked or boot looping phones when RSD does finally list your device it may not be listed as a A955 (mine was not). Instead you may see a device with a model of "S Flash OMAP3630 MI". After the first .sbf installed though my phone displayed the correct device model of A955 in RSD Lite.