I have a 06 tj rub with a rough country 4inch lift. I put on rancho 9000xl shocks and set on the softest setting. I put some zip ties on the shock shaft to check travel and went on a 4 hour ride and a few speed bumps. I noticed the front seems to be stiff when l hit a pot hole. The back shocks traveled about 31/2 inches while the front only traveled about 21/2 inches. It also has a heavy front bumper and winch on the front. Does this seem normal ?