Colecovision doesn't have the wait state... but I can remove that from the msx 
yeah I know.. hence the
Colecovision doesn't have the wait state... but I can remove that from the msx
In fact the CV does have the wait state. 
Gretings for your work, but a natural question rises in my mind...
Why all this work on a custom HW that, apart from you and few dozen people, none will never see?
What about continuing your project on MSX2+ ? Or, even better, on MSX2 but with horizontal scrolling?
Because like a few dozen people I have a GFX9000 here, which doesn't get a lot of use. And second because I promised Rob (from Sunrise) that I would do something for the GFX9000. Furthermore, if we have a few hundred MSX users with a GFX9000 and I can sell a few hundred expansion modules for CV users, then the user base would end being more than just a few dozen people, right? 
Eduardo
