6 months post hair transplant & hair density difference in my hair line - limited transplant or wait? (Photos)

I’m a 32 years old male healthy , I had my hair transplant FUE 6 months and 2 weeks back due to hair loss , I have noticed after 6 months that my hair front from right side looks less denser than the left side. I visited my clinic again and after reviewing they suggested I do another limited session of transplant immediately for volume. Shall I go for it or give it upto 12 months to decide? I’m currently using minoxidil since surgery according to them and instructions.