Choose 2 schools from each pool.
You have a very decent CGPA, good GRE scores. But NEVER underestimate the importance of LORs and SOP. If you go in with strong SOP/LORS top 10 can be added to your list. It will also push up the rankings of your saftey schools.
GRE subject will be a big plus.
Provided that you get strong SOP/LORs, add GRE Subject you can have three pools as 1-15(2 univ), 16-30(2 univ) and 30-40(2 -univ) thus with your safety schools you are still in first tier.