ok thanks, ill take your advise and do further reasurch, the decide if i should put them on. the boat will be electric, will this make any difference if i should put them on? -- formula175 ------------------------------------------------------------------------ formula175's Profile: http://www.modelpowerboat.com/forum/member.php?userid=3785 View this thread: http://www.modelpowerboat.com/forum/showthread.php?t=589