I am in favor of the move on t the next top theory. In my experience.....my points are getting better with every quilt I make. Just make note of it and work more on it the next time.....I used to cut my pieces of fabric "a little bigger" just in case....Now I work on making everything as accurate as possible....I strive to cut my fabric the exact size called for which means for me and the rulers I use making sure the lines on my ruler are directly over the edge of the fabric....not just to the inside of the ruler mark, not just to the outside of the ruler mark...but directly under the ruler mark...this actually can change with the brand of ruler you have...so it pays to stick to one brand of ruler ….I also make sure my seam is accurate....and if I have any question as to the quality of my quilt fabric, I will prewash and press it ...I will also do that if I am making a quilt with many different sized pieces or more complexity. Why....because if you do not pre-wash the fabric, it may just shrink enough as you iron your seams to make a difference. I don't worry if I am making a simpler quilt with bigger sized pieces....but especially with small triangles...I do that step. As for the the cut off points...most of the time they will not be that noticeable after you quilt and wash the quilt. and no one else will probably notice. As I said.....I went from about 1/3 of my points being good on the first try to now several years later...about 90% of them being good and the other 10% mostly "good enough". I do make quilts mainly for use however, not works of art for a wall, and not for entry into quilt shows.