I'd like to wax/seal some new struts that will be going on the car shortly. I have Sonus MotorKote, fk1000p, Optiseal, and Collinite 845. I'm leaning toward MotorKote. The new Opti-Coat 2.0 would be the best I suppose, but I don't have that yet. Any recommendations on tough wax or sealant?