I upgraded the coupling capacitors to the Jupiter copper foil no other mods. I spoke with Steve about that - he suggested that there was an advantage to not getting the mods now, to see how I like it as I ordered it and later on I could add the mods and go through the whole experience of getting a new amp and the wonder we all experience getting something wonderful and new all over again.
I did pull the trigger and order the Zrock2 before I received the SE84UFO, my only thought at this point is how much better can it get than this? I added the tube voltage regulator mod to the order.
The SE84UFO has truly amazing sound, I have read that there is a break in period for electronics, not sure about the physics behind that but look forward to it getting better if that's possible!

Appreciate your help and support - this is a great forum and community and awesome company with awesome products. Never knew this world existed but am very grateful to have found it.
I see that Decware makes Push-Pull Amps, I currently have a Push-Pull Amp, EL34 based its supposed to be high quality and a less expensive PP EL84 based amp. Neither of them sound anywhere near how good this SE amp sounds.
So I'm left wondering how the Decware PP amps sound in case I want to move up one day if I need more power than bridging two of the SE84UFO together. Right now I'm really sold on Single Ended amps!
Interesting (and expensive) hobby but right now it's all bliss!
Warm regards