After The Trooper, for me the best song on side A. Indeed, the energy bursts from the first second with these awesome guitar riffs which are at the same time a harmony. At the 3 minute mark the song gets more interesting. A bright shining solo by Dave and then this dark harmony, in which Adrian plays the very low tones. First in unison with Dave, then alone, just like in Purgatory. Only he can play like this. This style of playing is a recognizable H trademark.
Overall, I'd say the rating is an 8,5 -> 9.