Okay...this might just be me. But every time I hear the speed picking part of Heir Apparent (that is, the heavy riff that comes right after the acoustic riff around 4:00, on you tube of course) I think of the main riff of Thus Spake the Nightspirit by Emperor. I think it's the way the keyboards come into the riff, and there's a definite similarity between the chords used. Anyone else?