I had my Buggy 2.0 saver Set to "save" the servo and the top plastic failed....so IMO the spring is too tight.
CaseyP they Sure Are.
Boeing grade CF is Like NO OTHER.
IF i had my camera i would have pics of them mounted and ready to rock....all i had to do was cut off the rear 3-4mm and elongate the holes to fit the 1.0 chassis with these tower's.