I've spent a good deal of time on both. The Fire feels nothing like Blackstones FBV. It's more like a ROH with more glide, less bite. For instance, I usually skate on a 3/4 ROH. When i tried the 3/4 Fire I found it to have significantly less bite. I moved down to a 5/8 Fire, which felt more like the 3/4 ROH I was used to.
Still not completely sold on the Fire. It's not bad...I was hoping it was closer to Blackstones FBV. I'll probably move back to my normal 3/4 ROH next time around.