guys, rode in a 1998 31 fastech twin 454mags mpi fri. and am not familar with the ride of a step hull. i sat in the back alone with 2 people up front ( driver and pass.) in a small 3-4 inch chop should i feel so much vibration back there ? we were running different speeds 40mph -70 mph and it always did it.

Doesn't sound right..............I get no vibrations.

Are you sure there are four blades on those Bravo 1's?????

yes they are brand new 28p bravo 1 's . like i said the driver didn't notice it , but i did sitting on the rear bench seat.