the only thing I don't like about my newest Janome is that I have to pay more attention to my seam allowances. The 1/4" foot has a guide that tends to drag on the fabric, so I gave up on it. changing needle position is a good way to deal with the problem. Many people measure then use 2 or 3 layers of painter's tape to establish a guide. I learned where the fabric edge needs to be, which was not all that easy. My teacher said to measure each seam sewn until you are confident. Don't just measure the seam. Measure from side to side. (example: 2 sub-blocks of 2.5" unfinished size will measure 4.5" across after they are sewn together correctly.) that SCANT measure drove me crazy until I realized it is a measure from the middle of the seam thread to the hairy edge of the allowance. One fabric thread can throw you off.