Kalmah and Susperia are completely different. SUsperia is like thrash and Kalmah more like progressive blackened thrash. Susperia more understandable vocals , more melodic catchier riffs. Kalmah is a more melodic band overall and the enhancement of keyboards and a stronger rythmn guitar player. Kalmah is more epic song structure. I think Susperia has better drummer. Anyway the point is i dont really hear anything that can really compare the 2.
I think Tjadalv is much more technical than the guy for Kalmah, i mean hes good but I dont think he can play as technically proficient, go back and listen to Illusions Of Evil . I mean he might be able to play like that ( Kalman dude) but I dont think he has shown it.