Using a D7200 to shoot high school baseball. Have been using a Tamron 200-500 and old Sigma 70-200mmF/2.8 APO D EX HSM. Looking to upgrade but not sure what would be better, Tamron 150-200 G2 or Nikon 200-500 to replace the old Tamron 200-500. Or a Tamron 70-200 f2.8 g2 to replace the Sigma...