Shieldwall

Yeah, I'm listening to some now, they seem kind of like a Celtic equivalent to the Anglo-Saxon based Forefather, who I really like.
 
From what I can hear of Forefather, their style seems to differ quite a bit from Shieldwall... Shieldwall just seem more folk influenced. Ah well, both good bands! If I was to start buying Forefather albums, which one would you recommend?
 
I don't really know, because I only have one. But from what I have read, the first album is more traditionally black metal sounding, whereas the other three use more clean vocals and generally have a more folk-influenced sound.