I'm mostly curious from anyone who owns or has owned the Heritage AC30: what is super special about the EF86 channel in the Heritage amp? Is it something that is definitely worth having over the regular Normal channel in the Handwired? I own the Handwired with a Blue and a G12H30 in it and it sounds pretty great. The EF86 option just has me intrigued. I tend to play my amp pretty overdriven with channels bridged. YouTube demos abound for both amps, but it's honestly kind of hard to hear the difference.