I have a powerflyer and a bvision. and they were working allright. The problem is I think with the bision touching the powerflyer and the mem chips on the bvision getting so hot(or possibly due to the strain. My bision now seems ####ed. It seems to work, but then crashes the mahine on boot if u set the os to a bvision screenmode. I found the extra height of the apadter of the z4 bsboard give u just enough height to put the bvision over the top of the powerflyer, just about, but there again this is probably what has ####ed my bvision.