Since I don't have a pic, I guess we're having communication difficulties, but here goes:
Without moving my upper back whatsoever, or anything else save my arms, even in a seated position, I cannot get my hands into the position required to support a bar in the correct place. Perhaps at the gym I can ask one of their trainers to show me proper form for front squats (might as well), but it isn't a matter of upper back rounding too much (I don't think).
As to DB front squats, I don't think that I could safely support as much weight in DB form as is necessary in order for me to move up in weight. I think that it was around 165 (80-85lb dumbbells). Maybe I could support it, but it seems like a lot to hold up like that.
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