Just my two cents, Fletch Tite Platinum is very problematic for aluminum, never really worked for me, and even the manufacturer will say it really isn't intended for aluminum. I've had way too many problems keeping the feathers on with platinum, I'll never go back.
I've started using the generic super glue sold at Walmart, I think it's E6000, I've had zero issues with that stuff and it's easy to use, and way cheap! Only drawback is it gives off some noxious fumes, so make sure your work area is well-ventilated.