Ok, here's a question for all the experienced popup camper peeps. How many curse words, scraped knuckles, yelling spouses will it take to replace these caps with new ones (3 need to be done, but will do all 4)? I have an idea on how we'll have to do it from reading other posts, but just want to see if there are any tips or tricks that I may have missed. I can tell that the hole in the plastic is about twice as large as it should be. Come on...be honest.