Solid motor mounts here. Tried straps and turn buckels over the years. Got to the point that the driver side would not break, but the passenger side would. Got tired of dealing with it and went solid(both sides). I deal with the minor vibrations and after several years, it don't bother me much anymore. Rock solid when I hit the gears. NO flex or movement at all.. My car is a stick car. Auto's may have a different reaction