Kelly,
you might find this
Using Sekonic Meters to Balance Flash and Ambient II - Digital Photography 1 on 1 with Mark Wallace « Sekonic Blog useful in regards to mixing (metering) ambient and flash light.
I am jealous - I just received my cheapo chinese made radio control system to take my flash off-cam. Something like you new toy is on my wishlist.
Are you still accepting applications for an assistant?
