Hi Don and Ed , great to read your topic .
I have two midi accordions .
The Elkavox 83 and the Concerto DA200 so I'm spoilt for choice .
I've had the Elka for about 20 years it's a great work horse and use it with the Technics smac1200 expander .
I'm currently using the Technics KN7000 with the Concerto .and getting great sounds etc so you should really be getting some fabulous sounds with the tyros 2 it's awesome !!
I do mostly strict tempo ballroom gigs and general entertaining so i tend to use the automatics on the bass .
It's great to make contact with other squeeze box players .

Regards..........Giovanni (Norwich norfolk England )