It depends where your weights will be. For me if its the tail I will use wheel balancing weights and then drill a hole through it and screw it to the tail, NO CA NO EPOXY only locktite, this allows me to make adjustments. If forthe firewall I will just use good mounting tape, usually its for temp measure, when I am certain then I use the same screw method. with CA and EPOXY you have kinda made it permanent.