I agree with quiltsRfun "It takes a while to get the cutting and piecing accurate. If it really bothers you, take it out. In my case, I did the best I could and kept going forward. My first projects had many mismatched seams and cut off points. But I enjoyed what I was doing and didn't worry about it"
I've made about 5 or 6 myself, and none of them are perfectly matched up. I hope to get better with time and practice, but at the same time the eyesight is going so maybe they'll just start looking better to me lol