the best strings for a 7 string....assuming u play either regular tuning with a top B, or down tuning 1/2 step to 1.5 steps down, id have to say for low tension tones its all about the
dean markley super-v
the material is very dense with tone and has a super bright ultra long lasting harmonics, they will take ur squeals about 3 times longer.....
but for a 6 string, not soo good, i didnt like em
but for the 7 string, when i played with my 7th string in either drop b or drop c, they gave me more tone than thoseddarrio chrome, and the pitch of the edge of the windings on the strings dont have as much of a higher output when strung lke the super v