For those of you that apply fluid film or other undercoating products annually, when do you do it? Around now in September or is it too soon? Do you wait until November just before it snows? I'm in the Northeast and the roads get heavily salted around here. I've had this 4Runner for just under a year so this will be the 1st application. In addition to winter duty, I also took it out on the beach twice this year, w/ more days planned for next year. Most likely going to have a shop do it and just not sure if I should take it in now or wait a lil bit.