My most accurate seams were from the foot with the guide on the side.
My new Juki didn't have this foot so I ordered a set of them on Ebay.. I also got some other feet at
www.GoldStarTool.com I bought a different foot from them. Both places I was able to get great deals.... Having said that, I just ordered them early last week and neither have showed up yet.... My Gold Star package will be delivered on Monday according to the tracking...