Had the Killer Kali++... the one amp I wish I never got rid of... and Ive had most them all! Turned my 1983 JCM800 into such a versatile monster with tons of tone shaping options. Added gain stage(awesome), series/parallel loop, full clean, gain1 and 2 with 3 way bright switches, master 2 volume, glass, depth control to shape power section... all footswitchable. Dan's work is not only clean and superb... but hes such a good guy as well. He's a great player, takes pride in knowing 'real' players rigs and knows how to achieve the tone the client wants. I tried to buy back my Killer Kali++ but buyer won't let it go.. which is smart. Wish I NEVER did. Amp could retain the JCM stock kerrang and metallic bite... and cover everything from classic rock to modern... even metal (tho I don't tread much in those waters). If my finances and situations ever improve, I will be getting Dan to mod another for me... or buy one already Gower modded!