Just bought a 97 xb2003 with a 225 evinrude vindicator. At about 70 mph the boat starts to walk back and fourth very bad forcing me to shut it down. I'm running a 29 inch chopper and the prop shaft is about a half an inch below the pad. This is the first allison i've owned. Is this a normal thing for these boats? Some people say to drive through it i don't know. Some say i need hard mounts others say raise the motor. It gets to 70 like nothing i know there is alot more speed there if i could just hold it. Any advise? 8) 8)