"Do you think that a very narrow stance with a deep front squat would work even better for blowing up the quads?"
yes. Just to clarify though, i dont front squat, I back squat with a close stance, very deep. I cant do front squats with a wide stance and wide to me equals more ham/innerthigh development. In fact, my hams were lacking for years because I stayed close and I dont get enough out of fronts to withstand the pain. I try to keep my knees close, like a hack almost.
yes. Just to clarify though, i dont front squat, I back squat with a close stance, very deep. I cant do front squats with a wide stance and wide to me equals more ham/innerthigh development. In fact, my hams were lacking for years because I stayed close and I dont get enough out of fronts to withstand the pain. I try to keep my knees close, like a hack almost.