I need some advice from other parents out there if your child was behind on fine and gross motor skills but im?

I need some advice from other parents out there if your child was behind on fine and gross motor skills but improving a little bit every day would you hold them back for another year of preschool??Andrew can do pretty much everything kids his age can do but he struggles with cutting,printing he can count and sing his abc's but its a little scattered but he can spell his name out loud,very social and loves other kids.He can dress himself but tends to be lazy and claims he can't do it when he knows someone will help do it for him such as grandma.He is currently in speech therapy and is being monitored by child development center where they have someone come in to his preschool once a month to monitor how he is doing.I just want to know if your child is behind other kids by 6 months or more with some things would you hold them back for another year of preschool before shipping them off to full time kindergarten.The child development center says he is on the right track and is ready to enter kindergarten but I am worried about him falling through the cracks and ending further behind..Any suggestions or help from parents who have gone through or are going through this would be great.I just want him to have the best chance possible.Also if I do keep him back a year will it affect him the following year to get into kindergarten??