BXRI set up
First, use your studio strobes for your subject lighting and keep the hot-shoe flash for background, hair, and accent lights. Zooming the hot-shoe flash is a nice way of controlling the spread of light, many times eliminating the need for a snoot or grid.
If you don't want to mix studio strobes and hot-shoe flash units then buy more of the BXRI lights. Buy the same ones so you have backups.
For stopping motion forget your studio strobes and use your hot-shoe flash units. You may need to up the ISO to 800-1600 but you can pretty much eliminate the noise in post processing. If you just don't get enough light from your current 285s then add some more and use a 3 or 4 hot-shoe bracket.
Don't use the studio strobes for the background if you are using hot-shoe flash to stop fast moving subjects. You can wind up with the background being visible through an edge of the subject since the subject is moving in front of the background and the background is being lit by the longer flash of the studio strobes.
Living and loving it in Bangkok, Thailand. Canon 7D - See the gear list for the rest.
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