I have been having 'shoe fright' all day. I'm auditioning next week and I don't ever wear heels in my own/personal life! The guy told me to come in with six inch heels, which I am going to disobey because the idea scares me. So I bought chunky 4-inch heels to start off/audition in. Is this bad? Will they call me on it? I have always had bad knees that high heels are not great for, so I thought I should start off slow and build my knee strength. Any advice?