Very busy week at work.
I did play a bit and the sound is very good!  No, really good!
I find when I crank it I like the bass adjusted slightly down.
I found the spot where you could use the guitar knob to get the clean and the wreck drive.
I have to put the amp away from the front of the 4x12 or the 2x12 due to resonating a tube a bit too much.
I cleared a spot on top of the cab and it was fine.
It is louder than I expected!
It likes the strat and the les paul equally.

I will try working with the PPIMV at full volume and different settings when the house is empty.
The amp for sure goes beyond the plexi in terms of gain!
It is like the OTS and any other good amp. You have to spend some time with it to be sure you get the best out of it....

Any hints from guys that have one I am all ears.....

  I think going with the ToneSluts was a good idea.   I did the same thing, but went with Heyboers.  As well changed the stock Orange Drops to the Sozo Vintage Series caps. Sprague Atoms for the power caps.  My Expression stock was amazing in the Cleans, but the dirt was harsh to my ears. Tried all types of nos tubes. Nothing worked. Changing to Heyboers and the caps listed above,  all hint of harshness has disappeared for me. And the amp got quieter.

 Tried the Tungsol 12aX7s, but went back to all JJs. My changes just made this Expression more like what you hear from an actual Express. Sweeter, more musical. Because Full Power is a tad loud, I use it at 1/2 power atm.  Plenty of kick for jams. Using a Bogner Cube loaded with a Scumback fullbreakin M75.

I find I am not using the PPIMV at all. Turning it down doesn`t push the power tubes as hard I find.  It seems the Wreck Magic is because of the combined preamp and PTs working together.  My Volume at almost 2 o:clock. and Master maxed seems to be the sweetspot. Atm, I set all the other EQ knobs between 11 and 12 o:clock. The rest done from the guitar.