way wrong. stryped, the type you speak of (that bolts to the strut) is the kind you want to avoid. that type of bar has been known to bend or snap the top threaded part of the strut. SHO Shop made one like this. needless to say if you snap off the top of the strut, you are in it deep.
the OMP bars are the better kind because they bolt to the strut tower. this doesnt put any stress on the strut mount. it does keep the strut towers from flexing, however. and if you have the struts off of the car at some point, run bolts through instead of self tappers. more secure mounting.
the reason the FSTB doesnt do a heck of a lot is b/c the strut towers are already so close to a horizontal structural piece, i.e. the firewall. look at say, an S2000, and you will see the struts are much further forward in the engine compartment. cars like this will probably see a larger improvement from a FSTB.
the rear of our cars, having no horizontal support nearby, receive a larger benefit from having a STB. that is why people can actually see, or hear (really cuts down on creaks actually
) an improvement in rigidity.
HTH
