You're forgetting Greater Nanticoke, J.T. Lambert, Whitehall-Coplay, and Hershey. Stetson is also starting to be pretty competitive.
For trophying, maybe, but I don't think for making nationals. I think it's highly unlikely that anyone other than the three Ss and Bala are competing for a nationals spot.
Pentathlon-1@ regs, 4@ states, 16@ nationals
Road Scholar-2@ regs, 8@ states, 31st@ nationals
Disease Detectives-2@ regs, 1st@ states, 5@ nationals
Bio-Process Lab- 2@ states, 11@ nationals
Physical Science Lab- 38@ nationals
Team-1@ regs, 2@ states, 19@ nationals
Moving up to C.