Hi Mike,
The differences are actually pretty small between these and your pair. Lukasz broke down it down as follows:
"we have no news to share. The redesign is only cosmetic, the schematics is still the same. We discovered the JJecc99 tubes and just wanted to try them. They work very well but there is no revolution. We will probably use them because they are new and easy to buy in a local store.The rest of the amp is absolutely the same except that the power transformer is a toroid instead of EI. We rank them as equal except that the toroid is for us a shorter lead time. We will continue to use both as safe diversification of vendors.
Last change is a gold color volume knob - just an experiment in aesthetics."