I'm currently using a Nikon D7000, my question is would i benefit from upgrading my current lenses. I'm currently using a Nikon 18 ~ 70mm and a Sigma Nikon fit 10 ~ 20mm
When this magazine site review them they were rated in the 90% area.
My thoughts are currently to upgrade to a Nikon 16 ~ 85 VR and a Nikon 10 ~ 24 wide angle. Can anyone advise me as the ratings on these are down in the 80% range.

Kind Regards