I have seen a video saying on a hydro you want around 3/4 (12 ozs)of a pound strut weight . When I checked my 20 whip limited hydro I am 10.70 ozs but with a battery in it drops to 7.45 ozs. Total boat rtr weight is 6 lbs 7.6 ozs . The one thing I find interesting is I have a 6 ozs weight I...