I purchased a Janome 6600 earlier this year and I like it, but I'm having trouble with it not sewing easily over seams and wanting to kick the fabric over to the left as I get to the end of a seam. Did a little reading & decided the special accufeed quarter inch foot would solve my problems. So, I called the local shop. They were having a sale and offerred to hold the foot for me and still give me the 20% discount this week even though the sale would be over. Well, I picked it up this morning and tried it, and I hate it. It's big & clunky and wobbly and there's no way I'll ever use it. Would it be tacky of me to return it, or try to? Really, I might as well have thrown the money out the window. This was the first time I've been to this shop & the ladies who work there were very nice & I'd hate to spoil my relationship with them. So should I write it off as a mistake, or return it? Thanks!