Is anyone using this audio recorder with the SI2K, either as a separate recorder, feeding analog audio from it to the SI2K audio recorder or feeding as a mixer via USB to the SI2K audio recorder?

By co-incidence, one of these things turned up on a totally understaffed set for a Tropfest shoot yesterday but no operator. In the time we had, we could not work out how to make it listen to the XLR mikes only so went back to the traditional Rode>Mix-Pre>SI2K route.