Bass/acid sound

well lads, was wondering how would you recreate the electro sounding/acid sound in this track. is the main body of the sound more to do with acid and modulation or an electro square wave bass? absolutely mental sounding. give it a listen and see what ya’s think. drop is at 3:45. cheers br
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http://www.youtube.com/watch?v=QwIn4C3dLrMbr
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Adam Ellis has done a tutorial on acid sounds on you tube, although he starts off with preset (from the sylenth definitive collection), it might get you somewhere close to that sound, with more distortion and EQ on the low end perhaps.br
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Pretty sure they do an acid sound tutorial on the peak time trance vid on here toobr
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seen it before, good vid but still very hard to get good sounding acid just by following the vid. something i seem to struggle with anyway. cheers for reply btw