I have an 1997 Polaris RMK 700... I currently have a 2" riser block on it. It helped me a lot last season and i would like to get a 4 or 5". The question that I have is if i should get a higher riser block or go to the pivot riser... I have heard that the pivot riser moves your body forward and helps the center of gravity. Any input would help. Thank you!