the challenge, easily control levels of tracks 7+. i've got a job starting tomorrow where i've got 6 talent and boom. they need iso's while mixing hop to camera. my first solution was to stick a mic pre in my bag and run into my return 1/2 for tracks 7/8. luckily i had a few ta5 cables made so i could work with those ta5 connectors: ta5f to female 1/8"(camera return), ta5f to dual xlrf and ta5f to ta3f. so i had some options of to ways to get into those additional channels. but then i remembered i had an emergency that I had in my 302 kit, which has ta3m connectors.
so for those of us who are looking for some sort of POT/fader for the additional channels then getting an emergency RX can be a good setup. price wise, its about $180 for the box and then whatever you choose for the cabling. and since we haven't even seen what zaxcom has up their sleeve for the 4 fader add on, this is it for now...