you would lose your money, at least on the griz 700. been there seen that. that is against a forman 500 not a ruby.I have 2 friends with 700 Grizzlys and one with a Rubi. I'll see if they want to hook up since the 700 Grizz is similar to the BF. I would definately put my money on the Grizz or a BF.