Perfection is over-rated. Nobody slips under a quilt and says" but the points don't match!".... I follow the 2 mm/3 rule....2 mm is close enough/3 times with the ripper is the limit. Relax,sip an appropriate beverage,put on good music,and enjoy the colors and feel of your work. When in doubt...give it to an animal shelter...the cats love them and dogs are color blind.