I want to buy my first iem and can’t decide between the s12 pro and the awful explorer

Basically they are both at the same price (with the s12 beeping on discount) and I can’t decide between them. I listen mostly to metal music and little bit of jazz, classical, vocaloid, and j-pop, I’ll also be using them for anime and movie watching on the go. The only other audiophile products I have are the sennheiser HD 6XX, the Hifiman sundara and the sennheiser tw momentum 4. I like how all of them sound with the sundara being my favorite. I don’t know if I’m sensitive to treble but crt tvs used to bother me.
Idk if I forgot any other useful information but if I did I’ll edit in